I left the kefir grains in the secondary fermentation batch with strawberries and blueberries. Did I mess up my kefir grains? I didn't know I was supposed to take them out before secondary fermenting them with fruit.
I would expect them to be fine unless they ran out of sugar to eat. Start a new batch to be sure, but I always have 2 bottles going--primary ferment with the grains and no flavoring, secondary ferment with the flavoring and no grains. I've made mistakes before getting the grains with other things, and they seemed to work normally after.