My water kefir has changed and smells yeasty or funny?

If your water kefir has a yeasty aroma you may be over-culturing, which can cause an imbalance. Make sure to reduce the culturing time in warmer temperatures, to keep the grains well-fed and in balance.

With grains that have been in use for a while but have begun to smell yeasty, you might add ⅛ of a slice of a piece of lemon to 2-3 batches, to increase acidity and reduce the yeast. You can also try adding a teaspoon of molasses for extra minerals, this helps balance out the yeasts and bacteria.