Yes, you can freeze sauerkraut, but it will usually thaw softer than fresh refrigerated sauerkraut. Freeze it in meal-size portions with enough brine to keep the cabbage moist, leave headspace for expansion, and thaw it in the refrigerator. Frozen sauerkraut is best in cooked dishes.
Best Way to Freeze Sauerkraut
- Start with good sauerkraut. Freeze sauerkraut that smells clean and sour, has been kept cold after opening, and has no mold or spoilage signs.
- Portion it. Pack meal-size amounts so you do not have to thaw the whole jar.
- Add some brine. Do not freeze it completely dry. Brine helps protect texture and flavor.
- Leave headspace. Brine expands as it freezes, so leave room in rigid containers.
- Seal tightly. Use freezer-safe containers or bags. Flatten bags so they freeze quickly and stack easily.
- Thaw in the refrigerator. Use thawed sauerkraut cold or warm it in a cooked dish.
Freezing Changes the Texture
Freezing does not ruin sauerkraut, but it can make the cabbage softer and less crisp. That is why frozen sauerkraut works better in soups, sausage-and-sauerkraut dinners, casseroles, pierogi filling, and braised dishes than as a crunchy cold topping.
Container Choices
| Container | Best for | Tip |
|---|---|---|
| Freezer-safe bag | Flat portions and quick thawing | Press out extra air and lay flat |
| Glass freezer jar | Small portions with brine | Use freezer-safe jars and leave headspace |
| Plastic freezer container | Family-size portions | Label the date and leave room for expansion |
| Original opened jar | Not ideal | Too much air space and not always freezer-safe |
Does Freezing Affect Live Cultures?
If you buy raw refrigerated sauerkraut for live cultures, freezing and thawing may reduce activity. Do not treat freezing as a way to preserve probiotic claims. If live cultures are the reason you buy it, use the product cold and follow the label instead of freezing it for long storage.
FAQ
Can you freeze sauerkraut?
Yes. Sauerkraut can be frozen for quality storage, but the texture usually becomes softer after thawing. Freeze small portions with some brine in freezer-safe containers or bags.
Does freezing sauerkraut kill probiotics?
Freezing and thawing may reduce live culture activity, especially in raw refrigerated sauerkraut. Treat freezing as a storage method, not a way to preserve probiotic claims.
Should sauerkraut be drained before freezing?
Do not freeze it completely dry. Include enough brine to keep the sauerkraut moist, but leave headspace because liquid expands as it freezes.
How do you thaw frozen sauerkraut?
Thaw sauerkraut in the refrigerator, then use it cold or warm it in a cooked dish. Avoid repeated thawing and refreezing for best quality.
What is frozen sauerkraut best for?
Frozen sauerkraut is best in cooked dishes such as sausage and sauerkraut, soups, casseroles, pierogi filling, and braised cabbage-style sides.