I discovered it recently, and it seemed quite easy to make, so I decided to try... I'm doing everything from scratch, mixing the oat with water, sugar, and raisins, for a few days. That's going to be the starter. I also ferment honey with garlic and various spices. (Long process) Another one that I make is fermented ginger (grated). I will add it to lemonades, or use it as starter, to ferment pineapple juice. View quoted note →

Is the jar designed for fermenting?

Very cool. I am maybe signing up for to much but I'm currently trying to brew kombucha, milk kefir, and water kefir, and sour dough and see which ones I like and which ones for my life style best. They ask have different strains and benefits so hard to choose just one. #ferment

Yes, correct. It's a fermentation jar with a one-way valve on the lid.