Become an RNLI Lifeguard and help save lives on more than 240 beaches across the UK and Channel Islands. Become an RNLI Lifeguard and help save lives on more than 240 beaches across the UK and Channel Islands.
Storing in the Refrigerator. Scoop sauerkraut into jars or freezer bags. Close the jar or bag tightly so no air can enter. Label the jar or bag with the date. Sauerkraut can stay good for up to three months in the refrigerator. Dating the bag will help you remember its age. Place the jar or freezer bag filled with sauerkraut on a shelf in your refrigerator.
(and other FAQs). A) Sauerkraut is pickled cabbage. To make it, cabbage is shredded, salted and left to ferment in a de-oxygenated environment for 4-6 weeks. The salt, via osmosis, pulls water out of the cabbage to form brine that helps protect the kraut while it is fermenting.