Sauerkraut

The fermentation begins immediately, and you will see bubbles within 24 hours. It is safe to eat after 3 to 5 days, but most home cooks prefer the flavor after 1 to 3 weeks. Taste it daily starting on day 5 to find your preferred tanginess. Fermentation slows dramatically once refrigerated.

No vinegar is needed. True sauerkraut relies on salt and the natural lactobacillus bacteria present on the cabbage leaves to ferment and preserve itself. Vinegar creates pickled cabbage, which is different from fermented sauerkraut.

The most common cause is cabbage exposed above the brine. Always keep the cabbage fully submerged under liquid. If you see fuzzy mold (white, green, or black), discard the batch. A white film on the surface (kahm yeast) is harmless and can be skimmed off, but do not ignore visible mold.

Sealed and refrigerated, sauerkraut keeps for several months and continues to slowly ferment, developing deeper flavor. If it develops an off smell, sliminess, or visible mold, discard it.

Sauerkraut is the classic pairing for sausages, hot dogs, and pork dishes, and is essential in Reuben sandwiches. It also pairs well with grilled meats, roasted potatoes, and as a tangy topping for grain bowls and sandwiches.

Yes, you can. However, cooking kills the beneficial bacteria, so if probiotics are important to you, eat it raw or add it to dishes at the end of cooking. Traditionally, sauerkraut is heated gently with sausages or pork, and the heat will not harm the flavor.