Recently, Lea from Nourishing Treasures did a series of posts in which she tested 18 different sauerkraut fermentation set ups to see which ones were the best — everything from a recycled salsa jar to an expensive Harsch Crock. She tested for the prevalence of lactic-acid producing bacteria, the absence of mold or other undesirable microorganisms, ease of success, and more. This is the summary of her findings!