u/Gold_Illustrator1550

I'm new & just got some grains for milk kefir about a week ago. I'm the only one drinking it, and I've been doing about 2-3 cups of milk to 1 tbsp of grains. They've really taken off & it's already separating today so I'm going to have to strain again. Since I'm the only one drinking it, only 1 cup per day, I've seen mixed info about storing in the refrigerator. I'm going to need to be doing small batches & then small breaks in-between to give myself time to drink it. Is this going to harm my grains? I've seen mixed info about this. I just want to know what to expect.