Below is a short video I made which shows how to culture heavy whipping cream with milk kefir (not the grains themselves) in order to produce real kefir sour cream. From there, it can be broken down into butter and buttermilk. For that recipe/process, click here, otherwise scroll down for the video.
The kefir grain storage device show in the video may be purchased here:
Fermented potato chips with kefir sour cream blended with dehydrated kraut powder (tastes like amazing onion dip)
