Fermentation Guides

Fermented vs Pickled: Do Store-Bought Pickles Have Probiotics?

Most store-bought pickles contain zero probiotics — they're preserved with vinegar, not fermented with live bacteria. Learn the key difference between lacto-fermentation and vinegar pickling, how to read labels correctly,…

Pickling vs Fermenting: What’s the Difference? (Complete Guide 2025)

Learn the real difference between pickling and fermenting with this complete guide. Discover which method is healthier, easier, and better for your favorite foods.

Fermentation Temperature Chart for Vegetables, Dairy and Drinks

Most home ferments want an ordinary warm room: sauerkraut and fermented pickles 70–75°F (21–24°C) for 3–4 weeks, kombucha 68–77°F (20–25°C) for 7–10 days and milk kefir 68–77°F (20–25°C) for about…

Fermented Food pH Chart, the 4.6 Safety Line and How to Test at Home

pH 4.6 is the safety line for fermented foods: at or below it, the bacterium that causes botulism can't grow or make toxin, so a ferment needs to get there…

Canning Sauerkraut and Fermented Pickles: Times by Jar Size and Altitude

Fully fermented sauerkraut and fermented dill pickles can be canned in a boiling-water canner using NCHFP's tested process. Kraut takes 10–25 minutes hot-packed or 20–40 minutes raw-packed, depending on jar…

How to Make Vinegar at Home: Cider or Wine Vinegar, and Why It Isn’t for Pickling

Vinegar is made in two fermentations: yeasts turn sugar into alcohol, then acetic acid bacteria turn the alcohol into acetic acid. Start with cider or wine at 5.5–7% alcohol, add…

Salt and Brine Calculator for Fermenting Vegetables: Dry Salting or Brine, by Weight

For dry-salted ferments like sauerkraut, use 2–2.5% salt by weight of everything in the jar (20–25 g per kg). For brined vegetables, the percentage is of the water: a 2%…

Fermentation for Beginners: First Projects, From 5 Minutes to 3 Weeks

The easiest first ferments are quick dairy ones – ayran (5 minutes), labneh (overnight) and yogurt (4–8 hours) – followed by tepache and hot sauce, then the classic vegetable ferments:…

How to Make a Sourdough Starter From Scratch: Day-by-Day Schedule and Fixes

A sourdough starter is flour and water fed daily until wild yeasts and lactic and acetic acid bacteria take hold; it usually takes one to two weeks. In a study…

Best Vegetables to Ferment: Salt, Timing and a Guide for Each Vegetable

The easiest vegetables to ferment are firm, crisp ones – cabbage, carrots, cucumbers, beets, turnips, cauliflower and peppers. Weigh the salt (2–2.5% of shredded vegetables for dry salting; usually 2–3%…

Sourdough Starter Microbiology: What Lives in Your Starter and How to Steer It

A sourdough starter is a community of yeasts and lactic acid bacteria, often with acetic acid bacteria. In a study of 500 home starters, Saccharomyces cerevisiae made up most of…

The Science of Fermentation: How Microbes Turn Food Into Ferments

Fermentation is how microbes get energy from sugar without oxygen – breaking glucose down to pyruvate and then to products like lactic acid or ethanol and carbon dioxide. In food,…

Fermentation Troubleshooting: Kahm Yeast, Mold, No Bubbles, Mushy Vegetables – and When to Throw It Out

Most home-ferment problems come down to salt, temperature, submersion, time and cleanliness. A flat white film (kahm yeast) can be skimmed off; slow bubbling usually means the room is too…

How to Store Fermented Foods: Fridge, Freezer and Shelf Life Chart

Store finished fermented foods in the fridge at or below 40°F (4°C), in clean glass jars with the vegetables kept under their brine. Fully fermented sauerkraut keeps for several months;…

How Long Does Sauerkraut Last? Fridge, Freezer and Unopened Jars

Fully fermented sauerkraut keeps for several months in the fridge, as long as it stays covered, under its brine and is handled with clean utensils. Unopened shelf-stable jars keep until…

Sourdough Cinnamon Roll Focaccia: The Ultimate Guide to a Soft, Caramelized, Pull-Apart Masterpiece