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Water kefir grains may benefit from water sources with higher mineral content. Well water and spring water can be naturally high in mineral content and are ideal for making kefir.

Avoid distilled water, reverse osmosis water, and water which has been filtered through an activated carbon filter (such as a Britta or Pur) which often have extremely low or non-existent mineral levels. If you use one of these types of water, and your water kefir grains seem sluggish or inactive, it may help to either use a high mineral sugar or add a mineral supplement to your water.

Mineral Supplements

When using a mineral supplement, it’s important to start by using just one supplement to avoid overloading the grains. Try adding one of the following supplements to your next batch of water kefir and see how your kefir and grains react.

  • 1/8 teaspoon unrefined sea salt
  • 1/4 teaspoon plain baking soda
  • 1/2 teaspoon unsulphured blackstrap molasses

Using City Tap Water

If using city tap water, we recommend boiling the water for 20 minutes to remove chlorine, then allow it to cool to room temperature. You can also let your tap water stand for 24 hours to allow the chlorine to evaporate.

Structured, alkalized, or pH-adjusted water is not appropriate for fermenting water kefir.

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