“Can I use reverse osmosis well water for fermenting?” asks Shannon D.
The answer is yes… with a caveat. 🙂
I'm happy to give the short and sweet details on today's #AskWardee!
Keep reading or watching below to learn more!
The Question: Can I Use Reverse Osmosis Water For Fermenting & Sourdough?
Shannon D. asked:
We just moved and no longer have city water. Can I use reverse osmosis well water (we also have an iron filter) to make water kefir and for my sourdough starter? Or do I need to stick with bottled spring water? Thanks!
Shannon, thank you for your question!
Because we're featuring your question today's #AskWardee, you're getting a gift — a FREE eBook and Video Package! Our team will be in contact with you so you can choose which one you'd like!
Can You Use Reverse Osmosis Water For Fermenting & Sourdough?
Yes, you can! There is one caveat, though…
…You Also Need Minerals!
Even though reverse osmosis is one of the most effective ways to purify water, the well-known downside is it removes everything, including minerals.
Minerals are very important to fermenting organisms. Fermentation isn't successful if minerals aren't involved… those good guys love minerals!
So that means… once your water is purified via reverse osmosis, you just need to add minerals back into the water!
How To Add Minerals Back To Your Water
If you have Radiant Life's reverse osmosis water purifier as we do (see it here) it actually adds minerals back to your water after it's purified.
Psst… you can save $100 on this reverse osmosis water purifier by using coupon code WARDEE at checkout for a limited time!
And not just any minerals! They use a high quality, natural, pure form of coral calcite sourced from the ocean off the coast of Australia. So the water is perfectly pure… and perfectly hydrating!
If your reverse osmosis filter doesn't remineralize the water as Radiant Life's does, then simply get some of these mineral drops and put minerals back in your water. Your ferments will thank you. 🙂
Which Water Is Best For Fermenting & Sourdough?
The bottom line with fermentation is… clean, uncontaminated water with minerals is the best.
Did you know there are 2,100 known water contaminants? Including chlorine, fluoride, pesticides, herbicides, endocrine disruptors, glyphosate, and nitrates, plus others, they can cause cancer, allergies, hormone imbalances, respiratory issues, and much more.
Our world is more contaminated than ever, so now it's more important than ever to ensure we're drinking and bathing in clean, uncontaminated water. And fermenting with clean water, too!
If you have contaminated well or city water, we recommend filtering it. You can read about the whole house water filtration systems we chose right here on #AskWardee 134 plus how to go about testing your water to find out what kind of situation you have.
(I also discuss non-permanent options in case you're renting or can't install a whole house system.)
If filtering isn't an option, then bottled spring water works.
If you have clean well water, use the water you have. 🙂
More Fermenting Info, Reviews, and Recipes…
Check out my Lacto-Fermentation 101 Free Video Series RIGHT HERE.
And if you haven't already, CLICK HERE to download our FREE “Fermenting Formulas” Cheat Sheet, where I share formulas so you can create your own safe ferments using the product you have on hand — salsas, relishes, krauts, beverages, and more!
We also have extensive archives of ferment recipes here!
Any Questions Or Comments?
If you have other questions or comments about your own experience with water and fermenting, be sure to leave them in the comments!
- FREE “Fermenting Formulas” Cheat Sheet
- Lacto-Fermentation 101 Video Series
- Ferment recipes archive
- Which Whole House Water Filtration System We Chose & Why #AskWardee 134
- Radiant Life's 14-Stage Water Purification System (including reverse osmosis) — get $100 OFF with coupon code WARDEE for a limited time
More Sourdough Posts from the #AskWardee Show:
- Does Sourdough Bread Get Moldy? +Troubleshooting Dense Sourdough Bread #AskWardee 110
- 11 Tips For Lighter, Less Dense Sourdough Bread #AskWardee 053
- When Is A Sourdough Starter Ready For Baking? #AskWardee 145
- The Best & Healthiest Flours For Sourdough #AskWardee 065
- Sourdough Troubleshooting: How To Know When Your Starter Is Strong Enough For Bread-Baking
- Feeding Your Sourdough Starter… More Than Just Flour! #AskWardee 150
- Is Aged Flour *Really* Better For Sourdough? #AskWardee 122
- How To Transition A Sourdough Starter To Einkorn #AskWardee 069
What Is The #AskWardee Show?
The #AskWardee Show is the weekly show devoted to answering your niggling questions about Traditional Cooking: whether it's your sourdough starter, your sauerkraut, preserving foods, broth, superfoods or anything else to do with Traditional Cooking or your GNOWFGLINS lifestyle.
I share tips and resources, plus answer your questions about Traditional Cooking!
When: Wednesdays at 10am Pacific / 1pm Eastern
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What type of water do you use for fermenting? Please share your tips in the comments!
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