Kefir grains seem to thrive on minerals so be sure you are using a natural sugar and not white sugar. I use "Sugar in the Raw" which is turbinado sugar, a half cup per half gallon of water. You could use brown sugar or agave or pure maple syrup. I'm sure each would give it a different flavor. Be sure your water doesn't have chlorine, and don't dare use distilled water. I really think the seaweed gives them a lot of minerals. If you don't have any, a pinch of sea salt might help. After straining the grains, rinse them in cool water before starting another batch. Hope this helps.