I started my Yeast Water with organic raisins. I’ve used several different organic fruits along the way. But what stuck for me are apples and raisins To keep her going, on the same day every week, I strain off the old fruit and replenish the jug with fresh fruit and a little sugar. You can also use honey. The sugar/honey just gives the fermentation a little boost. When you use some of the Yeast Water for your recipe simply refill the water back to your water line (so mark your jar at your water level) on refreshment day when you add your fresh fruit and sugar.. Make sure you stirs your Yeast Water ONCE EVERY DAY