Food Processing & Preservation

Part of Phase 2: First Year

Food Processing & Preservation splits into fermentation and brewing, dairy, meat and fat, grain and seed storage infrastructure, and the day-to-day management of all of it. Without proper storage, 30-50% of a harvest rots, is eaten by rodents, or molds before use — the entire reason granaries, pits, and caches exist.

Fermentation and Brewing, Fermentation Science, Fermentation Conditions, Bacterial Fermentation, Yeast Biology, Wild Cultures, and Fermentation Vessels cover the underlying biochemistry. Salt, temperature, oxygen, and sugar are the four variables that decide how any ferment turns out, and a single gram of active yeast packs roughly 10 billion cells converting sugar into alcohol.

Basic Beer, Beer Brewing, Malting, Mashing, Grain Fermentation, and Grain Wine cover brewing from grain. Malted barley at 2.5-3 kg per 15 liters of water yields around 10 liters of beer at 3-5% alcohol, no hops needed to ferment it, and malting tricks a seed into germinating just enough to produce the enzymes yeast itself can’t touch starch with directly.

Basic Wine, Fruit Fermentation, Mead Making, and Cider Making cover fermenting fruit and honey instead of grain. Wine needs no malting and no boiling, just crushed fruit and the wild yeast already living on the skins, and mead, needing nothing but honey, water, and patience, is likely the oldest alcoholic drink in human history.

Distillation Basics, Alcohol Safety, and Beverage Production cover concentrating and safely drinking the result. Ethanol boils at 78.4°C against water’s 100, and the foreshots cut is for flavour, not safety: the methanol that forms as pectin breaks down is spread through the whole run, so the choice of feedstock, with fruit and pomace carrying far more than grain or sugar, is what governs the risk of blinding someone.

Vinegar Production, Lacto-Fermentation, Sauerkraut, Vegetable Fermentation, Salt Brine Pickles, and Fermented Hot Sauce cover fermenting vegetables and turning alcohol into vinegar. Lactobacillus bacteria already on vegetable skins drop a ferment’s pH to 3.5-4.0 once salted at 2% by weight, no refrigeration or heat needed, and Acetobacter bacteria turn any 5-10% ABV alcohol into vinegar given continuous oxygen.

Dairy Fermentation, Dairy Processing, Cheese Basics, Rennet Sources, Cultured Butter, and Yogurt Making cover milk. Salted butter keeps 4-8 weeks and hard cheese can hold 6-24 months, turning a cow’s daily 10-20 liters into food that outlasts the season, and rennet’s chymosin is what turns liquid milk solid — without it, only soft acid-set cheeses like cottage cheese are possible.

Meat Slaughter and Fish Preservation cover animal protein. Fasting an animal 12-24 hours before slaughter empties the gut, and a 5-10 day salt cure followed by sun-drying extends fresh fish’s 6-12 hour safe window to 6-12 months.

Sugar and Sweeteners, Syrup Making, and Oil Extraction cover the other calorie-dense staples. Honey is 80% sugar by weight and keeps indefinitely sealed, birch syrup takes 100-150 liters of sap to make just one liter, and plant oil packs 9 calories per gram, the densest food energy available.

Food Storage Infrastructure, Granary Design, Grain Storage, Underground Grain Storage Pits, Cache Construction, Cache Placement, Emergency Caches, Rat Proofing, and Hay Making cover the structures that hold all of the above. Ancient Egypt kept seven years of grain in reserve, and the core problem, moisture rather than the grain itself, still decides whether stores last that long; a rat guard cone needs at least 60 cm of smooth diameter since rats can climb roughly 25 cm up a vertical surface before losing grip.

Preservation Scheduling, FIFO Rotation, and Inventory Management cover running the system day to day. Sumerian clay tablets tracked grain moving in and out of storage nearly 5,000 years ago, and FIFO sounds obvious until you notice how often new additions sit at the front while the old stock quietly rots at the back.

Desiccants, Drying for Storage, Seed Storage Containers, Storage Conditions, Temperature Monitoring, and Fermentation Method close the list with seed-specific storage. At 5% moisture a sealed seed can stay viable for decades; the same seed at 12% moisture is dead within a year, and every 5°C cooler and every 1% drier roughly doubles how long stored seed stays viable, with the two effects multiplying rather than simply adding.

Fermentation Science

The biochemistry every ferment below runs on, before any specific recipe.

Brewing from Grain

Malting and mashing grain into something yeast can ferment.

Fermenting Fruit and Honey

Wine, mead, and cider — no malting required.

Distillation and Safety

Concentrating alcohol, and the one mistake that makes it dangerous.

Vinegar and Vegetable Ferments

Salt and anaerobic conditions doing the work, from sauerkraut to hot sauce.

Dairy

Turning milk that spoils in hours into cheese, butter, and yogurt that last months.

Meat and Fish

Slaughter and preservation for animal protein.

Sugar, Oil, and Syrup

The other calorie-dense staples, extracted or boiled down from raw plant material.

Storage Infrastructure

The granaries, pits, and caches that hold everything above against rot, rodents, and raids.

Running Storage Day to Day

Scheduling, rotating, and tracking stores so nothing quietly spoils unnoticed.

Seed Storage

Moisture, heat, and oxygen: the three enemies of a seed waiting for next season.

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