A good pickle is a very pleasing thing, but branching out from fridge pickles can seem a little intimidating if you’ve never fermented anything before. But lacto-fermentation—which requires nothing but salt and an oxygen-free environment—is far more accessible than it sounds, especially if you have a vacuum sealer.
source https://skillet.lifehacker.com/lacto-ferment-fruits-and-vegetables-in-vacuum-bags-1845508370