First time in doing milk kefir. I was hesitant because i see a lot starting on activated and this one is dehydrated and i was not sure if I'll be successful. I followed the instructional video. I used whole milk 3.8% 1 cup used coffee filter to cover the glass. I only used plastic to stir and left it for 24 hrs. On the 2nd day i transferred to new glass with same amount of milk. After every 8 hrs i shaked the glass a bit. Before 24 hrs it was starting to get thicker So 3rd day i used 1 1/2cups of new milk. It got so thicker. So today i used 2 cups. I guess i could say it is a success activating the milk kefir grain. Now i can make my own milk kefir at home. Thanks a lot.