Preserving — Fermented pickles — Gourmet Gastronomer

Cucumbers or other vegetables soured by lactic fermentation in brine — distinct from fresh-pack pickles, which are acidified with vinegar and are not fermented.

Fermented pickles earn their sourness in the crock. NCHFP: regular dill pickles and sauerkraut are fermented and cured for about 3 weeks; refrigerator dills ferment about 1 week. During curing, colors and flavors change and acidity increases ¹. Fresh-pack or quick-process pickles are not fermented ¹. That sentence is the whole distinction. See Quick pickle.

Sauerkraut is the cabbage member of the same family. Fermented pickles use the Cucumber-shaped member.

Do not cut the salt #

In fermented sauerkraut and brined pickles, salt provides flavor, texture, and microbial control. NCHFP: do not attempt those products by cutting back the salt required ¹. Covering liquid is Brine. Lacto-fermentation is the biology.

Cucumber softening has a specific prep note: remove and discard a 1/16-inch slice from the blossom end; blossoms may carry an enzyme that softens pickles ¹. That is a quality control, not a process time.

Alum may be used to firm fermented pickles, but NCHFP says it is unnecessary and is not in their recipes; alum does not firm quick-process pickles ¹.

Temperature still matters #

Kraut’s researched temperature window is the clearest NCHFP ferment clock we have on these sources: 70° to 75°F for a 3- to 4-week ferment; cooler is slower; below 60°F may not ferment; above 75°F may go soft ². Do not treat that table as a cucumber formula. Use a tested pickle process for cucumbers.

What to notice #

Cucumbers must stay under brine. Smell clean lactic sour, not rotten. Texture should still have snap; mush is a quality failure. Pickles as acid foods may be boiling-water canned from a tested process ³. Processing the finished pickle in a boiling-water canner is how NCHFP prevents yeast, mold, and enzyme spoilage in the jar ¹. Do not invent the minutes. Canning and Food safety.

Sources & further exploration

Cited in this article

General Information on Fermenting — National Center for Home Food Preservation, University of Georgia — Distinguishes fermented pickles and sauerkraut from fresh-pack pickles and relishes; salt in fermented cabbage and brined pickles is not optional.
Sauerkraut — National Center for Home Food Preservation, University of Georgia — USDA-linked sauerkraut fermentation temperatures and optional boiling-water canning process times. Safety numbers only from this page, not invented.
Ensuring Safe Canned Foods — National Center for Home Food Preservation, University of Georgia — Adapted from USDA Complete Guide to Home Canning, AIB No. 539 (revised 2015). Acid vs low-acid foods, pH 4.6, botulinum, boiling-water vs pressure canning.

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Fermented pickles

Do not cut the salt #

Temperature still matters #

What to notice #

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