by kutululu on Thu Feb 27, 2020 1:22 pm
Just my idea, but I would add anything as a part of the second fermentation, meaning after you pick out the grains and let the kefir work on (either at the room temp or in the fridge). Otherwise there's always a risk of spoiling/damaging the kefir culture with something else, which is "sitting" on the added ingredient or killing it in the worst case. You might even end up with the grains getting mixed up with whatever is added.