Making Fermented Pickles

Before refrigeration, fermentation was survival. This 1924 USDA guide captures the science and art of lacto-fermentation at a time when every household needed to preserve the harvest. Edwin LeFevre breaks down the chemistry of brine, the critical percentages of salt, and the precise conditions that transform cucumbers into crisp, tangy pickles. The book covers salt, sour, sweet, dill, and mixed varieties, along with sauerkraut and other fermentable vegetables like string beans, green tomatoes, and cauliflower. The troubleshooting chapter reveals hard-won wisdom: why brine turns cloudy, how to prevent soft pickles, and what happens when the wrong bacteria take over. For modern fermenters tired of vague internet recipes, this bulletin offers precise, time-tested instructions from an era when getting preservation wrong meant winter scarcity.