HowToFerment

Primary guidance register

Sources

Every consequential instruction in the initial manuals traces to NCHFP/USDA or university Extension guidance. Dates below are the review, update, or underlying revision dates displayed by the sources when checked on September 10, 2026.

Execution sources

Selected manual procedures

  • Let’s Preserve: Fermentation — Sauerkraut and Pickles Penn State Extension · Updated May 22, 2023

    Selected sauerkraut procedure: five-pound formulation, exact salt relationship, temperature/time combinations, submersion, readiness, stop conditions, and storage.

  • Sauerkraut National Center for Home Food Preservation · Adapted from USDA guidance revised 2015

    USDA-derived corroboration for cabbage preparation, five-pound salt increments, supplemental brine, temperature/time combinations, monitoring, and refrigerated storage.

  • Dill Pickles National Center for Home Food Preservation · Adapted from USDA guidance revised 2015

    Selected dill-pickle formulation, cucumber preparation, temperature/time combinations, explicit discard signs, refrigeration, and canning pathway.

Safety and interpretation

Foundational guidance

  • General Information on Fermenting National Center for Home Food Preservation · Adapted from USDA guidance revised 2015

    Tested proportions, produce quality, salt selection, acidity, and distinctions among fermented, fresh-pack, refrigerator, and fruit pickles.

  • Suitable Containers, Covers, and Weights for Fermenting Food National Center for Home Food Preservation · Extracted from USDA guidance revised 2009

    Food-grade vessels, container capacity, weights, equipment cleaning, and keeping cabbage and cucumbers 1–2 inches beneath brine.

  • Causes and Possible Solutions for Problems with Fermented Pickles NCHFP · Adapted from So Easy to Preserve, 6th edition, 2014

    Pickle-specific relationships among weak or strong brine, temperature, immersion, texture, surface scum, sediment, utensils, and spoilage warnings.

  • Preserving Food at Home: Fermentation University of Minnesota Extension · Reviewed in 2026

    A general produce-fermentation workflow covering low oxygen, temperature, submersion, source-scoped pH monitoring, and refrigeration. It directs users to NCHFP’s tested sauerkraut and dill-pickle recipes.

Do not merge

A separate authoritative sauerkraut procedure

  • Understanding and Making Sauerkraut Colorado State University Extension · Reviewed October 2025

    A distinct 2–2.5% salt-by-cabbage-weight procedure using 68–72°F for about 7–14 days, with its own brine-loss and yeast-scum instructions. These values are not averaged into the selected Penn State manual.

Reading the register

Scope notes

  • “Revised 2015” or “revised 2009” is the underlying publication date displayed by NCHFP, not a claim that the webpage itself was published then.
  • UMN’s pH 4.60 endpoint and nine-month refrigeration duration belong to its generalized workflow.
  • CSU’s salt percentage and 7–14 day window belong to its separately named procedure.
  • NCHFP’s dill-pickle formula applies to its specified cucumbers, vinegar, water, salt, and container-capacity basis.
  • The current manuals are documented and not reproduced by HowToFerment.