# Chef Zero Waste

> Circular kitchen and zero-waste authority — using peels, stems, bones, brines, stale bread, wilting produce, sourdough discard, and leftovers; storage that prevents spoilage; and a triage system for "should I toss this?". Use whenever the user wants to reduce food waste, asks what to do with scraps/leftovers/stale bread, has produce about to turn, or wants a kitchen that wastes nothing by design.

- Skill: `dedinc/chef-zero-waste` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add dedinc/chef-zero-waste`
- Raw SKILL.md: https://api.skillmd.com/api/skills/dedinc/chef-zero-waste/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: DedInc (https://skillmd.com/u/dedinc)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/dedinc/chef-zero-waste

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# Chef Zero-Waste (Circular Kitchen)

Zero-waste is not virtue theater — scraps are ingredients the industry trained people to discard. Stems, bones, rinds, and brines carry concentrated flavor; the circular kitchen just closes loops the guides already opened (stock, pickling, fermentation).

Read `references/scrap-map.md` for the ingredient-by-ingredient scrap map and revival recipes.

## The three loops

### Loop 1 — Prevent (beats any recycling)
- **Buy to a plan, store to physics:** apples/bananas/tomatoes emit ethylene — keep away from everything else; herbs = flowers (jar of water, bag over); mushrooms in paper never plastic; potatoes+onions apart (mutual ripening agents); bread at room temp ≤ 2 days then FREEZE sliced (fridge staleing is fastest — the counterintuitive one).
- **FIFO discipline:** new behind old; one "eat me first" bin in the fridge — the single highest-impact habit.
- **Cook the plan's fragile items first**, hardy items late-week (leafy → roots order).

### Loop 2 — Transform (scraps are ingredients)
The big five transforms, in order of value:
1. **Stock bag** (freezer): onion ends/skins (skins = golden color), carrot/celery trimmings, mushroom stems, herb stems, chicken bones → pot when full (see technique guide stocks). Skip: brassicas (bitter), beets (dye), anything moldy — it's a stock, not a bin.
2. **Stale bread economy:** breadcrumbs, croutons, panade for kotlety (meat guide), panzanella, French toast, bread soup, kvass direction. Stale bread is a scheduled ingredient, not a failure.
3. **Brine & liquid recapture:** pickle brine → marinades/dressings/brining chicken; kraut juice → dressings; parmesan rinds → simmered in soups (umami bombs); bean liquid (aquafaba) → vegan meringue (restrictions skill); whey → pancakes, bread liquid, brining.
4. **Wilting-produce ladder:** salad-crisp → raw; soft → cooked (soup, sauté); ugly → blended (sauces, fritters, smoothies); "today or never" → pickle/ferment/freeze. A tomato too soft for salad is EXACTLY right for sauce.
5. **Fat rendering:** chicken/duck/bacon fat strained into jars = free flavor oil (roast potatoes in chicken fat once and you'll never discard it again).

### Loop 3 — Leftover engineering (design, not reheating)
Rule: **change the FORM, not just the temperature.** Reheated dinner = sad copy; transformed dinner = new dish:
- Roast meat → fried rice, tacos, salad topper, soup garnish. Mash → fishcake/kotlety base, gnocchi direction, shepherd's-pie lid.
- Cooked grains → fried rice (BETTER day-old — designed for it), grain salads, stuffed vegetables.
- Braises/soups → improve overnight by design; plan them as 2-day dishes and call it aging, because it is.
- The weekly "зачистка" slot: one meal/week is officially pantry-improviser night (chain `chef-pantry-improviser`) — institutionalized, it prevents 80% of fridge decay.

## Safety boundary (zero-waste ≠ zero-judgment)
Mold on soft/wet food (berries, bread, sauces, soft cheese) = whole item out (invisible mycelium spreads); hard cheese/firm veg = cut 2–3 cm around, rest fine. Slimy meat/fish, off smells, bulging cans, rice left warm for hours — out, no heroics. Reheat leftovers once, fully hot; fridge life table in `chef-food-safety`. Saving 20 rubles of rice is not worth a day of your life — the circular kitchen recycles flavor, never risk.