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You are here: Home » Food Preparation » Recipes » Condiments, Dips, & Spreads » Lacto-Fermented Homemade Ketchup

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Lacto-Fermented Homemade Ketchup

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Is it crazy for ketchup to bring me such a smile? Honestly! I didn’t know if I should name this delicacy “Oh My Lans Ketchup!”, “Mercy Sakes Ketchup!”, or “You Are Never Going to Believe It Ketchup!”. | TraditionalCookingSchool.comIs it crazy for ketchup to bring me such a smile?

Honestly! I didn’t know if I should name this delicacy “Oh My Lands Ketchup!”, “Mercy Sakes Ketchup!”, or “You Are Never Going to Believe It Ketchup!”.

When I think about this delicious, simple, and nutritious condiment, I can only shake my head. Can you imagine encouraging your child to take a dip in ketchup? Who doesn’t love to dip?

Enjoy the taste and tang of summer year round with this lacto-fermented treat! Your gut will thank you… as will each of your friends and family members! 🙂

Is it crazy for ketchup to bring me such a smile? Honestly! I didn’t know if I should name this delicacy “Oh My Lans Ketchup!”, “Mercy Sakes Ketchup!”, or “You Are Never Going to Believe It Ketchup!”. | TraditionalCookingSchool.com
3.67 from 53 votes
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Lacto-Fermented Homemade Ketchup

Enjoy the taste and tang of summer year round with this lacto-fermented treat -- homemade ketchup!
Course Condiment
Author Erin VanderLugt

Ingredients

  • 12 ounces tomato paste organic, no salt added
  • 3/8 cup pure water
  • 1/8 cup whey or water*
  • 2 tablespoons raw apple cider vinegar
  • 1/4 teaspoon ground mustard powder could probably use a prepared Dijon mustard if you don't have powder
  • 1/8 teaspoon ground cloves
  • 1/4 teaspoon ground cinnamon
  • 1/8 teaspoon ground allspice
  • 1/8 teaspoon ground cayenne pepper
  • 1/2 teaspoon sea salt I used larger grained salt
  • 1/4 to 1/3 cup maple syrup or honey or molasses

Instructions

  1. *If using water instead of whey, increase sea salt to 3/4 teaspoon.
  2. In a medium sized bowl, whisk together all ingredients.
  3. Pour sauce into a storage container.
  4. Cover and leave at room temperature for 2 days.
  5. Move to the fridge.

Other Fermented Condiments

  • 3 Lacto-Fermented Mustard Recipes (zippy, zingy flavor!)
  • Honey Dill Mustard
  • Lacto-Fermented Mayonnaise
  • Simple, No-Pound Sauerkraut
  • High Vitamin C Sauerkraut
  • Homemade Kimchi: An Easy Korean Sauerkraut Recipe
  • Old-Fashioned, Crunchy, Fermented Garlic-Dill Pickles
  • Lacto-Fermented Turnips & Beets

This post was featured in 43 Fermented & Probiotic-Filled Condiments, 50+ Tomato Recipes (from breakfast to dinner), and 92 Nourishing Grill & Barbecue Dishes, Drinks, & Desserts.

Do you make your own homemade ketchup? Will you try lacto-fermenting it next time?

We only recommend products and services we wholeheartedly endorse. This post may contain special links through which we earn a small commission if you make a purchase (though your price is the same).

Posted in: Condiments, Dips, & Spreads Condiments, Dips, & Spreads (Gluten-Free) Fermented Condiments Fermenting & Culturing Food Preparation Recipes Sauces Sauces (Gluten Free)

About Erin

Erin writes from Anchorage, Alaska where she savors a slow-paced and simple lifestyle with her husband and three young boys. Family birding adventures, hiking in the mountains, camping in their VW bus, and the warmth of the springtime sun bring them many smiles. Their greatest joy, however, comes from living for Jesus and seeing His goodness and care in the big and little moments of each new day.

Reader Interactions

Comments

  1. Jana says

    June 16, 2010 at 9:58 am

    How long do you think this would keep in the fridge?
    Jana
    .-= Jana @ The Summer House´s last blog post… Fresh Navel Oranges =-.

    Reply
    • Emilie says

      October 19, 2014 at 8:41 pm

      It’s lasted over a month in my house. I doubled the recipe but it’s still gone by then!

      Reply
    • Cindy says

      May 31, 2015 at 3:09 pm

      Can I use powered goats milk whey instead of fresh whey?

      Reply
  2. Stacy says

    June 16, 2010 at 10:31 am

    I can’t wait to try this. It looks delicious! Thanks for the recipe.
    .-= Stacy @ Delighting in the Days´s last blog post… Healthy Body = Happier Home =-.

    Reply
  3. Liz Joiner says

    June 16, 2010 at 10:59 am

    Fantastic! I can’t wait to make this one! All the other recipes I find have fish sauce in it and that is something that I don’t even think I’m quite ready to dig into!

    Reply
    • Inetta Bennett says

      March 15, 2017 at 11:24 am

      Actually I have made a to die for barbecue sauce with one of the ingredients being fish sauce. It was surprisingly good.

      Reply
  4. Kat says

    June 16, 2010 at 11:08 am

    Looks great, can’t wait to try this. I’m still looking for the perfect ketchup recipe.
    .-= Kat´s last blog post… Comment on The First Thing I Cooked by Tweets that mention Kat’s Food Blog » The First Thing I Cooked — Topsy.com =-.

    Reply
  5. Mary P. says

    June 16, 2010 at 11:09 am

    I have always made the recipe from NT and love it, but missed some of the spices that other ketchups have. This sounds like it will really fit the bill.

    To those who are unsure about using fish sauce – don’t worry, it does not lend a fishy taste to the finished product. It gives a depth of flavor and a bit of saltiness. It also is the source of the fifth taste – umami. I will make sure to add fish sauce when I make this ketchup recipe.

    Reply
  6. Patty says

    June 16, 2010 at 11:39 am

    I’m wondering about some substitutions. Honey for the maple syrup and sauerkraut juice for the whey. Any reason why those won’t work?

    Reply
    • Wardee says

      June 16, 2010 at 11:40 am

      Patty – I think those would be great substitutions. Go for it!

      Reply
  7. Erin says

    June 16, 2010 at 11:57 am

    Patty- I agree with Wardee. Sounds great. I also think it would be nice to use molasses for part of the sweetener, especially if the ketchup is going to be used for barbeque sauce. 🙂

    Reply
  8. Erin says

    June 16, 2010 at 12:00 pm

    Jana- I wish I could give you an exact time. I know we finish our homemade jars much sooner than a regular bottle of ketchup because it is good on so many things, and we feel so good using it. I’d say at least a month and probably longer. If you are concerned, just give it a smell. Your nose will tell you! 🙂

    Reply
  9. Erin says

    June 16, 2010 at 12:01 pm

    Stacy, Liz, Kat, and Mary- Thanks for your enthusiasm! It really is delicious, and so easy to make. Hope you enjoy it like we do! 🙂

    Reply
  10. Kimarie says

    June 16, 2010 at 12:52 pm

    Yippee! We have also used and loved the NT recipe but thus one looks like it has more pizazz to it. 😉
    .-= Kimarie´s last blog post… Sprouting Grains For a Large Family =-.

    Reply
  11. Kelly Holderby says

    June 16, 2010 at 4:10 pm

    Perfect timing! I’m almost out of ketchup. I’ve been making the NT recipe, but this sounds like it’s definitely worth a try. I’ll be using sorghum syrup in it.

    Reply
  12. Erin says

    June 16, 2010 at 4:17 pm

    Kimarie and Kelly- I’d love to hear how you like the recipe. It’s an easy one to tweak if it’s not quite perfect for you the first time. Hope you enjoy it! Makes me want to go on a mission showing everyone how easy it is to make lovable homemade ketchup!

    Reply
  13. Alyss says

    June 16, 2010 at 6:23 pm

    Last summer I made a plum chutney that I have been using as ketchup all year. The original recipe came from The Cottage Smallholder but I wrote up my version on my blog. This looks like a super easy, great tomato ketchup.. I might try it soon! Thanks!

    Reply
  14. Erin says

    June 16, 2010 at 7:27 pm

    Alyss- Plum chutney sounds amazing! Wish plums were more accessible to me. 🙂

    Reply
  15. Rachel says

    June 17, 2010 at 1:20 am

    Lacto-fermented, I would imagine this should last a good 2 months or more in the fridge…in the unlikely event you don’t finish it off well before then!

    Reply
  16. Monica says

    June 18, 2010 at 9:48 am

    THANK YOU ERIN!! I have been wanting to make my own ketchup for my daughter and have been hesitant cuz all recipies have whey in it. she can’t have it. 🙁 I am sooooo looking forward to trying this!

    Reply
  17. Erin says

    June 18, 2010 at 11:38 am

    Monica- Let me know how you like it. Hope it’s a recipe your daughter enjoys! 🙂

    Reply
  18. Erin says

    June 18, 2010 at 6:00 pm

    Rachel- Thanks for your comment. I agree. I’m guessing it’ll even go longer than that. No spoil prone ingredients like raw eggs! I can’t believe how fast our ketchup disappears! 🙂

    Reply
  19. Malana says

    June 19, 2010 at 7:25 am

    This recipe sounds great! Do you know how I could use tomatoes from my garden in it? This amateur doesn’t know how to change tomatoes into tomato paste. 🙂

    Reply
  20. Anjanette says

    June 19, 2010 at 10:57 am

    Looks so easy! I’m definitely making this next week – I ordered some tomato paste from my co-op! yay!

    Reply
  21. Kylie NZ says

    June 20, 2010 at 1:07 pm

    Okay, I am totally crazy about every recipe Erin posts. Here is another great one I can not wait to try! Added to the list of sourdough pizza crust, sourdough skillet pancakes.. love love love! Keep them coming! : )

    Kylie

    Reply
  22. Erin says

    June 20, 2010 at 2:56 pm

    Kylie- Thank you so much for the smile! You are very sweet. Hope you enjoy the ketchup as much as we do. 🙂

    Anjanette- This recipe could not be easier. In fact, it’s easier than going to the store and waiting in a line to check out. 🙂

    Reply
  23. Erin says

    June 20, 2010 at 3:08 pm

    Malana- Oh, how I would love to have enough tomatoes from our garden to consider making tomato paste! I did a little looking for you and came across a great website. Looks like 5 lbs. of tomatoes will give you around 2 cups of paste. The process involves cooking the tomatoes, pushing them through a sieve, and finally slow baking the sauce in the oven to remove the water. Oh delicious! If you are overrun with tomatoes, give it a try!
    Here is the link- http://localfoods.about.com/od/condiments/ss/tomatopaste.htm
    Good Luck!

    Reply
    • Danny says

      December 11, 2016 at 5:22 pm

      Another good way to make paste is to dehydrate your tomatoes, then powder them in a blender or food processor. When you want paste add a little warm water, want sauce, add a little more water, want juice, you guessed it, add more water. We like to keep dried tomato powder vacuumed sealed in glass canning jars

      Reply
      • Terri Sipsky says

        May 10, 2017 at 9:10 am

        5 stars
        Danny, I’m assuming you seed the tomatoes and peel them before powdering them? Also how do you vaccum seal your glass canning jars? Thanks for the powdering tip.

        Reply
  24. Malana says

    June 21, 2010 at 7:33 pm

    Erin-
    Thanks so much for the link about tomato paste. I’m certainly going to give it a try if we have a bountiful harvest. I can’t wait for my tomatoes to be ready!!
    Thanks for sharing your wonderful recipes. The sourdough pancake recipe also looks delicious. I need to get a sourdough starter to try it, but I used my cast iron skillet for just basic pancakes and they were better than usual. 🙂

    Reply
  25. Amy says

    June 21, 2010 at 9:56 pm

    THANK YOU for posting this! Question for you- how do you know the fermentation process has worked? Does it taste a little sour? I can’t have whey so will be using other things to kick off the fermentation process, and am just wondering how I will know when it has worked. Thoughts?

    Reply
  26. Erin says

    June 21, 2010 at 10:03 pm

    Amy- The apple cider vinegar will also ferment the ketchup. Leaving it on the counter for three days should do the trick. And, to be honest, I don’t really know how you know if it is working. I just trust that it is (based on information in the Nourishing Traditions book and other fermented recipes I’ve read), but that isn’t a very good answer now, is it! 🙂 I know the ingredients are nourishing, and that fact alone makes me smile inside and out!

    Reply
  27. Karen says

    June 22, 2010 at 9:01 am

    Thank you so much for sharing! We don’t normally use it, but I have grandchildren for the summer and they need it for everything! What a timely post this was and I am heading to the store for some tomato paste. 🙂

    Reply
  28. Karen says

    June 22, 2010 at 4:11 pm

    Erin, You mentioned you will be going through PA this summer? We live near the Wilkes-Barre/Scranton area. Will you be close to me? So far our summer has been very good.
    We have been getting the sunshine and rain showers just when we need them to make
    everything green and gardens growing nicely. You can email me. Thanks.

    Reply
  29. Kelly Holderby says

    June 26, 2010 at 3:42 pm

    Just made this and it is truly delicious! I’m going to add it to my recipes in Springpad.
    Thank you so much!

    Reply
  30. Erin says

    June 26, 2010 at 3:48 pm

    Kelly- So glad you think it’s delish! Thanks for letting me know! 🙂

    Reply
  31. Kylie NZ says

    June 29, 2010 at 5:58 pm

    My my my. This is good good good. This is officially my new ketchup recipe. I have always used the NT one, which was alright, but this is delicious! It hasn’t even fermented yet and I couldn’t even stop having little spoonfuls!
    What are your favourite places to use it?
    I bulk buy my tomato paste in a bout 5 pound containers, then freeze it in 1 1/2 cup portions (12 ounces). When ever my ketchup runs out, I pull my jar of paste out of the freezer, and make up a new batch. I just had the thought while making this, it would be SO much more time efficient to make up a massive batch of this ketchup when I first get the tomato paste, then freeze it. When I run out, I simply pull one out of the freezer already made, rather than making a new batch every time. Thanks for another stunning recipe Erin!

    Reply
  32. Erin says

    June 29, 2010 at 11:02 pm

    Kylie- So very glad you enjoy the ketchup! Isn’t it good! I still shake my head when I think about it! And, I think your idea to freeze batches is great. I should do that. We go through it so fast. We’ve enjoyed this ketchup with salmon patties, fried potatoes, burgers, meatloaf… so many things. Delicious! 🙂

    Reply
  33. Monica says

    July 13, 2010 at 10:58 am

    Erin – ok, I did it. just hope I did it right! I used raw coconut water vinegar, cuz my daughter can’t have apple cider vinegar and I put the metal top with the seal on the jar and twisted it on to sit out for 2 days on the frig. Should I have used a towel? we live in florida, so as soon as 48 hours were up, in the frig. it went. it smelled nice, no, it smelled really nice, so ate some. I love it. 🙂 My daughter has day’s where she loves it and days when she doesn’t love it, depending on her mood 🙂 it was so easy to do. the hardest thing was hoping I’d remember when to put it in the frig. ha ha. My husband’s question was “does it taste like real ketchup?” I thought so, so said yes, you try it and tell me. he hasn’t yet, but I am sure in time he will since I won’t buy a new bottle of the “real” ketchup right away. ( oh I’m so bad….)

    Reply
  34. Erin says

    July 15, 2010 at 7:26 am

    Monica- Sounds like you did it just right! Glad you enjoy it! Hopefully your husband will give it a try soon. 🙂

    Reply
  35. Lisa says

    July 20, 2010 at 9:27 am

    how much does this make? Maybe I missed it? Looks yummy and easy – but I want to make sure I got the right size containers ready 🙂

    Reply
  36. Erin says

    July 21, 2010 at 12:18 pm

    Hi Lisa- It makes a little more than 2 cups. I usually fill my 2 cup ball jar and then have a little bit left over in a smaller jar. Enjoy!

    Reply
  37. Ceitllyn says

    August 1, 2010 at 5:32 pm

    There was a question posted about using a lid versus a towel but I didn’t see an answer. I am new to fermenting, so could you let me know. It would be a great help. Thanks loads 🙂

    Reply
  38. Wardee says

    August 2, 2010 at 12:15 am

    Ceitllyn – You can do a towel or a lid. I’d prefer a lid, since this lacto-fermentation happens without the presence of oxygen and there’s no need for air flow, which just introduces more organisms to settle on the top of the ketchup and possibly proliferate.

    Reply
  39. Janette says

    August 17, 2010 at 10:27 am

    Hi. Just a quick question about fermenting and what room temperature is best? I am finding that during the summer months it is too hot and my lacto fermented sauerkraut doesn’t turn out right. Does anyone have any info on this? I am thinking temps in the low 70’s is best but during the summer it gets in the 80’s in my kitchen. Any ideas on this? Thanks!

    Reply
    • Wardee says

      August 18, 2010 at 9:48 pm

      Janette — Best is right around room temp. Over 80 degrees and things go very fast. My ferments last weekend (during hot weather) were done in half the time. So 1-1/2 days instead of 3 days. Very fast! We were enjoying 100 degree weather outside and the house was almost as hot. So, if you have a hot kitchen, keep an eye out for mold (skim it off the top), and be prepared for things to be done soon. With something like ketchup, you won’t know it necessarily, like you would a pickle. I made this ketchup last weekend and since everything else was done fast, I considered the ketchup done too.

      Reply
  40. Michelle says

    August 21, 2010 at 9:42 pm

    I made this today & was very pleased with the taste. I have always enjoyed the NT recipe too and I am not a fish lover at all. I use half the amount of fish sauce called for, use water for the rest, and the taste is nice and not at all fishy. But this was great too! I think maybe next time adding some molasses, garlic and paprika or chilli powder might make a really good BBQ sauce…I will post if it works! I made this is the food processor as it mixed the honey in better. I was wondering if ACV can be used to sub for whey in other ferments too? I know it can when soaking grains; I didn’t realize that it was an option for ferments though..
    This filled.maybe 5/8 of a quart sized jar,so I am guessing doubling it would be too much for producing a quart since you need the empty space at the top. Has anyone tried?

    I don’t know about the freezing idea mentioned above …wouldn’t it destroy the live enzymes/good stuff you are trying to create by doing the lacto-fermnting process? .

    Reply
  41. Erin says

    August 22, 2010 at 4:34 pm

    Michelle- So glad you enjoyed the ketchup. Your comment, however, has pointed to a bit of editing I must do! Whey must be used in the ketchup if you want it to be lacto-fermented. You may omit it, but then you would not reap those benefits. The ACV is added for taste. I’m sorry if that was confusing.
    Your BBQ sauce idea sounds amazing. I have yet to give that a try. Please let us know how it goes. Delish!

    Reply
  42. Michelle says

    August 22, 2010 at 9:36 pm

    OK, so it is lacto-fermented with the ACV and the whey but would not be if you used just the ACV and water, right?

    Reply
  43. Erin says

    August 22, 2010 at 11:17 pm

    Yes. The whey does the work. You could leave the ACV out completely, use the whey, and have a deliciously nutritious lacto-fermented condiment! 🙂 Enjoy!

    Reply
  44. Mala says

    August 31, 2010 at 10:50 pm

    By tomato paste do you mean raw tomatoes blended and pureed or did you make the paste by cooking the tomatoes first?
    Thanks in advance for your clarification.

    Reply
  45. Erin says

    September 1, 2010 at 8:18 am

    Mala- I purchased organic, no salt added tomato paste from the store. If you want to use your own tomatoes, you have to go through the process of cooking them down first. Check out this recipe as an example or the many others on the web. Good luck and enjoy the ketchup!

    Reply
  46. Mala says

    September 1, 2010 at 11:10 pm

    Wow I appreciate your prompt reply, thanks. I couldn’t find the link for the tomato paste recipe in your reply though.

    Would it suffice to simply steam, puree the tomatoes, pass it through a coarse filter, and then cook down the puree again to ketchup consistency, then cool it and carry on with the recipe to make ketchup?
    Thank you once again!

    Reply
  47. Erin says

    September 2, 2010 at 8:54 am

    Mala, sorry about that! Here are the links. One recipe cooks down the tomatoes on the stovetop, the other cooks down the tomatoes in the oven. With either method, you will end up with delicious, fresh homemade tomato paste. Enjoy!

    http://www.saveur.com/article/Recipes/Homemade-Tomato-Paste
    http://www.ehow.com/how_5388295_make-homemade-tomato-paste.html

    Reply
  48. monica says

    September 9, 2010 at 5:58 pm

    i was so bummed to read that the ketchup is not lacto-fermented without the whey…. is there any other thing I could use to make it lacto-fermented? Thanks. 🙂

    Reply
  49. radiantfusion says

    September 28, 2010 at 9:27 am

    Monica, whey is needed for lacto-fermentation in this kind of recipe. However, it is easy to get whey. Just hang plain yogurt (with live cultures) in a cheese cloth for about 8 hours. The yellowish liquid that drains out is whey, and it stores in the fridge for about 6 months. What’s left in the cloth is yogurt cheese, which can be salted and eaten like cream cheese (I add chives, too).

    Reply
  50. monica says

    September 29, 2010 at 6:48 am

    Thank you radiantfusion for your reply. I understand how to get whey, I was just wondering if there were other sources for getting whey. 🙂 like could I get whey from coconut yogurt? or can you only get whey from dairy sources? hope I am asking my question correctly 🙂

    Reply
  51. maria says

    November 18, 2010 at 11:13 pm

    Hello, and thank you for sharing the blessings God has given you so that we too can enjoy His bountiful offerings the way He intended. Tomato paste, as opposed to tomato puree, isn’t widely available here in England, and the only brand i’ve found does unfortunately contain added salt. If I use it for this recipe, could I just omit the salt listed in the recipe, or is it there as a preservative as well as seasoning? Many thanks in advance, God bless

    Reply
  52. Ashley says

    January 20, 2011 at 9:59 am

    How long will it stay good for?

    Reply
  53. Holly says

    July 8, 2011 at 8:47 am

    How long will this last in the fridge?

    Reply
    • Wardee says

      July 8, 2011 at 8:55 am

      Holly — I had some last 6 months and it was still good for longer I am sure. It wasn’t opened very often at the back of the fridge. Opening it more will reduce the storage time.

      Reply
  54. B. says

    July 18, 2011 at 2:38 pm

    To the person who wanted to know if there’s an alternative to whey: I’ve used the juice from home make sauerkraut to lactoferment lots of savory recipes. It’s perfect for ketchup. Delish.

    Reply
    • Toni Legates says

      January 10, 2012 at 9:34 am

      Thanks that what I needed to know since I don’t like whey! Happy fermenting!

      Reply
  55. monica says

    July 19, 2011 at 6:18 am

    hello B.

    oooh, that does sound yummy. thank you. I am not up on what can make something probiotic, so would that also make the ketchup probiotic?

    Reply
    • Toni Legates says

      December 27, 2011 at 1:31 pm

      That sounds wonderful. I don’t always like the flavor of whey and I do love the fermented cabbage juice Idea. I can’t wait to try this sounds fantastic! Thanks for suggesting it!

      Reply
    • Chris says

      October 30, 2013 at 1:17 pm

      Monica the whey contains bacteria from the fermentation of the milk when making cheese or yogurt. When you put this into the mix the bacteria will reproduce making the ketchup come alive with this healthy bacteria, hence the probiotic nature.

      Reply
  56. angela says

    August 5, 2011 at 1:59 pm

    cant wait to try this. ive got my yougert hanging right now.

    Reply
  57. Julie Rossberg says

    September 6, 2011 at 9:07 pm

    I’m excited to find this recipe for lacto-fermented ketchup. However, I was surprised that you can lacto-ferment something which has been cooked first. The lactic acid-producing bacteria survive the cooking process O.K.? It is the whey and salt which preserves it, and it gets new, live lactic-acid producing bacteria from the air, our hands, and/or??? ! Thanks for your responses!

    Reply
    • Wardee says

      September 7, 2011 at 5:49 am

      Julie — Yes, you can lacto-ferment something which has been cooked first. But since the naturally present organisms have died you MUST add a starter culture — from whey or a non-dairy starter culture. That’s why this works. 🙂

      Reply
      • Julie rossberg says

        September 5, 2013 at 5:23 pm

        Wardeh,

        Thanks so much for the reply. When you say whey or a non-dairy starter culture, does raw ACV count?

        Reply
        • Wardee Harmon says

          September 5, 2013 at 5:25 pm

          Julie — No, you can’t use raw ACV. It’s the wrong culture for this kind of fermentation. Well, having said that, you could probably do it but it wouldn’t be lacto-fermented, it would be more vinegar-fermented.

          Reply
  58. Chana says

    December 20, 2011 at 8:54 am

    Thanks for this recipe – it sounds yummy! Question…. if I use water instead of whey, do I need to add more salt or add some type of culture?

    Reply
    • Wardee says

      December 20, 2011 at 9:09 am

      Chana — Double the salt or use a non-whey culture (not both).

      Reply
  59. Brenda says

    January 5, 2012 at 5:06 pm

    I just put some ketchup out to ferment. I started with the NourishingTraditions recipe, but tweeked it quite a bit with a little apple cider vinegar and cloves, garlic and onion powder, but was still wondering what it was missing. Next time, I’m trying this one!

    Reply
  60. Jenn Neddo says

    January 9, 2012 at 6:45 am

    Can I use the whey from draining my kefir in this? Thanks, Jenn

    Reply
    • Jenn Neddo says

      January 9, 2012 at 6:46 am

      Kefir cheese that is 🙂

      Reply
    • Wardee says

      January 9, 2012 at 7:27 am

      Jenn — Yes!

      Reply
      • Jenn Neddo says

        January 9, 2012 at 2:53 pm

        Thank you for letting me know so quickly! Also do you make your Kefir with grains or from the powder? I noticed that yours is so much thicker than mine, I use the grains.

        Reply
      • Julie says

        August 14, 2012 at 9:06 pm

        What part of the Kefir are you talking about here? Can you put the whole grain in? Do you still add the salt?

        Reply
        • Erin says

          August 15, 2012 at 6:27 pm

          Hi Julie- Drain your kefir and use the kefir whey. Don’t add the kefir grain. Yes, still add the salt. Hope you enjoy it! 🙂

          Reply
  61. Nicole says

    April 21, 2012 at 4:09 pm

    i made this last week, used a recipe from cultures for health which said to sit out for 3-5 days. My hubby put it in the fridge after the right amount of time since I had to go out of town. I got home and tasted it today and what started outta sting like my grandma’s homemade ketchup before fermentation now tastes like home-brew…. :(. Any hints for what to do different next time????

    Reply
    • Ross says

      February 10, 2013 at 6:30 pm

      Did you get an answer about the “homebrew” taste of your ketchup? From my experience as a home brewer it is necessary for containers used for fermentation to be spotless. This is not to suggest the container you used was dirty but there are wild yeasts and bacteria floating around all over (think about how sour dough starter is made). It is possible that your ketchup was “infected” with some wild yeast and that resulted in the off taste..

      Reply
  62. Eve says

    May 24, 2012 at 6:59 pm

    This is THE BEST ketchup ever!!! I can hardly make and ferment it fast enough for my girls, to whom ketchup is a major food group onto its own – but with this recipe, I don’t mind! Thank you for sharing your recipe!

    Eve

    Reply
    • Erin says

      July 3, 2012 at 10:11 pm

      Hi Eve- Thank you so much for your comment. I’ve been off-line for a bit, but I am so glad you enjoy the ketchup! 🙂

      Reply
      • Esther says

        July 19, 2012 at 8:43 pm

        Erin- do you also have a blog? I am very curious about living in Alaska and gardening, farming, etc with its extreme cold winters and short growing season. . I’m convinced my husband and I and our little family will be moving there in the next few years and want to learn all I can now. 🙂

        P.s.- cant wait to try this recipe!

        Reply
        • Erin says

          July 23, 2012 at 10:03 am

          Hi Esther! No, no blog as of the moment. 🙂 Thanks for asking! Hope you enjoy the recipe and your learning about Alaska. It is a most wonderful state (filled with many farmers and some very large produce!).

          Reply
  63. Janine Jozwiak says

    August 24, 2012 at 6:02 am

    For a newbie, can someone tell me where I can get whey? I’m sure it’s not the whey powder you use in smoothies, is it?

    Reply
    • Wardee says

      August 24, 2012 at 11:47 am

      Janine — Here’s a post all about it:
      https://traditionalcookingschool.com/2011/07/20/free-video-whey-what-it-is-how-to-get-it/

      (Also includes a video.)

      Reply
  64. Lora says

    October 8, 2012 at 7:39 pm

    Just a question, do I burp the container during the two days?

    Reply
    • Erin says

      October 8, 2012 at 10:03 pm

      Just a question, do I burp the container during the two days?

      Reply
  65. cramera says

    December 24, 2012 at 12:06 pm

    Can I use rejuvelac or coconut water kefir instead of whey?

    Reply
    • Wardee says

      December 24, 2012 at 4:16 pm

      cramera — Yes, you can. 🙂

      Reply
  66. Mary says

    January 4, 2013 at 8:36 pm

    This probably a silly question, but can I use a store-bought organic ketchup and just add whey or another culture to it and allow it to ferment on the counter in a mason jar? How about store-bought salsa? Also, I was wondering if you can ferment frozen vegetables like asparagus and cauliflower. What can I say? I’m a sucker for a shortcut.

    Reply
    • Jason says

      June 27, 2013 at 4:00 pm

      Mary, good question. I don’t see why you couldn’t use that shortcut, provided there were no preservatives (such as potassium sorbate) added. But really, is it so easy to make! If you do make it, you can also keep out ingredients such as “natural flavoring”, which is just another name for MSG.

      Reply
      • Mary says

        June 28, 2013 at 11:41 am

        Thanks, Jason.

        Reply
  67. Jenn says

    February 18, 2013 at 6:58 pm

    We have been searching for a homemade ketchup for a while and we keep coming back to this one. I’ve even sent a few friends this way for the recipe. Thank you!

    Reply
    • Erin VL says

      February 19, 2013 at 2:24 pm

      Yeah, Jenn! So glad you like the ketchup recipe. I have to agree. Tasty! I’ve been itching to make myself a batch of this and the mustard, lately… Fun and easy kitchen activity to do with children. Thanks for letting me know! 🙂

      Reply
  68. sue says

    April 2, 2013 at 1:37 pm

    Do you know if a vinegary kombucha tea could be used instead of the ACV? Would it make a problem combining with the cultures in the whey? Thanks.
    What is the purpose of the vinegar? Is it for taste or does it adjust the ph of the ferment correctly, until the bacteria gets jump started.

    Reply
    • Erin says

      April 2, 2013 at 4:40 pm

      Hi there Sue- Feel free to use your kombucha instead of the vinegar and even instead of the whey. Kombucha would do a great job of fermenting your ketchup. Just a matter of your taste preference!

      Reply
      • Bethany says

        May 5, 2014 at 2:31 pm

        So for the whey I can just use whey protein powder? Is that right?

        Reply
        • Millie says

          May 5, 2014 at 5:28 pm

          Hi Bethany,

          For lacto-fermented recipes you’ll want to use whey from dairy products. Here is a post Wardee did that shares what whey is and how to get it. https://traditionalcookingschool.com/2011/07/20/free-video-whey-what-it-is-how-to-get-it/

          Millie
          GNOWFGLINS Support Team.

          Reply
  69. Beth says

    December 2, 2013 at 5:25 pm

    Does this recipe make a full pint size jar or a different quantity? Thanks! 🙂

    Reply
    • Erin VL says

      December 7, 2013 at 3:25 pm

      Hi Beth- I believe this recipe makes just a little over a pint size jar amount. Hope you enjoy it!

      Reply
  70. Mirian says

    April 20, 2014 at 11:00 am

    Could I use the fermented juice from my Bubbies pickles? Would that give me the same lacto fermentation?

    Reply
    • Wardee Harmon says

      April 21, 2014 at 6:43 am

      Mirian – Yes, you can. 🙂

      Reply
  71. Emilie says

    October 19, 2014 at 8:45 pm

    Is this supposed to be tightly covered while it ferment or just keep-the-bugs-out covered?

    Reply
    • Erin VL says

      October 20, 2014 at 9:11 am

      Hi there Emilie- Go ahead and put a lid on it. Enjoy!

      Reply
  72. Melissa says

    July 16, 2015 at 10:54 am

    I am trying to lacto-fermented ketchup right now, it has been sitting on my counter for 3 days but I don’t see any bubbles forming. Does this mean that it is not working?

    Reply
    • Erin VL says

      July 18, 2015 at 10:16 am

      Hi Melissa~ Sounds to me like your ketchup is ready to be popped in the fridge. Don’t worry if you don’t find bubbles. If you used active whey, you should be all set! Enjoy!

      Reply
  73. Cori says

    August 31, 2016 at 3:35 am

    5 stars
    How about adding raw onion juice? Would that compromise the bacteria? I figure you can do it with salsa… I just tried it and so far the taste is excellent!

    Reply
    • Erin VL says

      September 1, 2016 at 8:58 am

      Sounds tasty Cori! Glad you gave it a try! 🙂

      Reply
  74. Billy says

    July 17, 2017 at 1:38 pm

    5 stars
    This looks delicious! How much does fermenting the ketchup change the flavor of it? Will it still have a subtle sweetness to it like it does normally? Thank you for sharing this recipe! I really want to make my own fermented ketchup at home!

    Reply
  75. Karen Schroder says

    August 14, 2017 at 7:19 am

    Not sure if this post is still active since most comes from 2012. I’m trying to eliminate sugars – can I use stevia instead of the maple syrup/honey?

    Reply
    • Erin says

      August 15, 2017 at 3:20 pm

      Hi Karen~ Feel free to use stevia. Start small and taste as you go. A little goes a long ways! 🙂

      Reply
  76. Monica says

    March 4, 2018 at 6:37 pm

    5 stars
    My kids proclaimed this “the BEST ketchup EVER!” and that’s saying something, cuz they came straight from French’s store bought!

    I added about 1T molasses, and used 1T whey, 1T kombucha (because the Greek yogurt I had didn’t want to give up any whey!) but otherwise followed the recipe. I let it ferment for 2.5 days because our house is cold in the winter! (And other ferments take longer than recipes say.) Will definitely make again! Thanks for the recipe!

    Reply
  77. Crissy says

    December 29, 2018 at 12:13 pm

    Hello! Thank you for the recipe, so easy! I was wondering if it is suitable during pregnancy, please?
    Thank you!

    Reply
  78. Tatia says

    June 3, 2019 at 1:09 pm

    I saw several comments about fish sauce, but I must be missing something because I don’t see fish sauce in the recipe. I would think that would add great flavor, but I’m wondering how much to use? Thanks!

    Reply
  79. Maritza Castello says

    July 9, 2020 at 2:49 pm

    I only used ACV since I did not have whey.Is this ok?

    Reply
  80. Jeanetta says

    June 17, 2022 at 8:49 pm

    Could you use stevia in place of the sweetener? I am trying to avoid sweeteners. Also, do you have a bbq sauce recipe? My family LOVES ketchup and bbq sauce on everything!

    Reply
  81. Katie says

    January 12, 2023 at 8:53 pm

    I am using this recipe from Wardee’s book . I just made it but had no way to find out if I could use a non-organic tomato paste that contains salt.I tried a smallish amount of sea salt and have it fermenting on my counter. I did everything else according to recipe. I guess I will find out but if you can answer,it would be nice. Thank you.

    Reply
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