This Kefir Starter is what makes it so simple. No grains to tend or keep alive. I just use this freeze dried starter for the first batch then 2 Tablespoons of the made Kefir for next batches. The down side is it only does about 7 batches before you need to use another packet. But this comes in a bundle of 6 packets so it should last a long time!
NOTE: For those of you who want all raw. Using Young Coconut water and/or the Young Coconut meat blended will work in a similar way. Just watch it close it may be done sooner because of all the active enzymes! It's not quite as cheap or as simple but it's even that much better so if time and money permits GO FOR IT!