Sauerkraut: Canned, Refrigerated and Opened Storage
Check whether your sauerkraut was sold shelf-stable or refrigerated. FoodKeeper’s high-acid canned category names sauerkraut and gives five–seven refrigerator days after opening for quality. Bubbies is always refrigerated: its maker gives three–four months after opening for quality and taste, with the contents kept under brine. Follow the exact product’s instructions and date.
Quick answer
FoodKeeper’s high-acid canned-food category explicitly includes sauerkraut and gives 12–18 months in the pantry from purchase for quality. Separately, USDA’s shelf-stable chart describes unopened commercially canned products.
FoodKeeper counts from purchase but its entry does not itself say unopened. This guide does not apply to jars labelled Keep Refrigerated or to homemade jars.
FoodKeeper gives five–seven days refrigerated after opening for the high-acid canned category, which explicitly names sauerkraut. This is quality guidance; follow shorter product instructions.
Count from opening the commercial can. Do not transfer this category reference to every continuously refrigerated fermented brand.
Bubbies requires its sauerkraut to stay refrigerated and states a two-year shelf life from packing. Use the package date and maker’s directions. Bubbies does not say whether this unopened period concerns quality or safety.
Packing starts this maker statement, not purchase or opening. Do not turn it into a new two-year allowance when bought.
Bubbies gives three–four months refrigerated after opening for quality and taste. Keep the contents submerged in their brine and follow the exact product’s instructions.
Count from opening for this named product, separately from its packing date. Topping up, transferring or rechilling does not create a fresh period.
Why guidance varies
Shelf-stable canned sauerkraut and always-refrigerated commercial jars are different products. Home fermentation, home canning and cooked dishes need their own complete process or leftover instructions. Refrigerated packaging alone does not tell you whether sauerkraut is raw or unpasteurized.
Match the product state, storage conditions and source clock above. This guide does not provide an automatic expiry timer.
Frequently asked questions
Does refrigerated sauerkraut always mean raw or unpasteurized?
No. Retail refrigeration and processing are separate questions. Check the exact product’s treatment and storage instructions rather than assuming a refrigerated jar is raw or unpasteurized.
Can I use fermentation time as a storage estimate?
No. Fermentation schedules describe a controlled preservation process. For homemade sauerkraut, follow the complete National Center for Home Food Preservation recipe, including its fermentation and canning instructions. Those process times do not become pantry or refrigerator keeping periods.
Can a cooked sauerkraut dish use the jar’s months-long advice?
No. A cooked dish with meat or other perishables is a prepared food with its own handling requirements. Use cooked-leftover guidance; the sealed or opened jar’s period does not carry over.
How long can I freeze sauerkraut?
This guide gives no specific freezer keeping period for sauerkraut. That does not mean freezing is forbidden or give the product extra time beyond its own instructions.
Sources for this answer
- A USDA Food Safety and Inspection Service — Shelf-Stable Food Safety — USDA’s shelf-stable canned-food guidance distinguishes unopened commercially canned food from products that must remain refrigerated.
- A FoodSafety.gov / USDA FSIS, Cornell University and Food Marketing Institute — FoodKeeper English product data — FoodKeeper’s high-acid canned category explicitly names sauerkraut: 12–18 pantry months from purchase and five–seven refrigerator days after opening, as quality guides.
- A FoodSafety.gov — FoodKeeper App — FoodKeeper describes its purpose as helping maintain food freshness and quality.
- A USDA Food Safety and Inspection Service — Leftovers and Food Safety — Cooked dishes containing sauerkraut and other perishables need cooked-leftover handling; jar storage periods do not carry over.
- A FoodSafety.gov — Cold Food Storage Chart — FoodSafety.gov’s general cold-storage guidance is 40°F or below refrigerated and 0°F or below frozen; it does not supply a sauerkraut-specific freezer period.
- B Bubbies — FAQ — Bubbies sauerkraut must stay refrigerated. Its unopened shelf life is two years from packing, with no stated quality-versus-safety distinction; after opening, three–four months concerns quality and taste, with contents submerged in brine.
- A National Center for Home Food Preservation / USDA — Sauerkraut — Complete NCHFP sauerkraut fermentation and canning process; fermentation schedules are processing instructions rather than ready-to-eat keeping periods.