I have grains that have not touched the metal, have always been with brown sugar in a glass salad bowl with its lid of the same glass placed on it. I make soy milk kefir with the surplus but do not reuse them for fruit kefir..
Give good milk kefir grain care, Maintained in raw milk, renouvelé tous les 2-3j
Possibilité de remise en main propre secteur Valdahon-Pontarlier-Morteau (Doubs 25)
Or by postal sending, You send me a pre-affranchia envelope as well as 2 waterproof sachets and I send you to the reception of the mail
