Food Audit: Off-Grid Aussie Style (No Fluff)

By Fiona Gallagher · permaculture designer · food, animals and preservation on 12 acres in Tassie

“After losing 40% of my winter potatoes to frost, I now rely on deep mulch and cold frames for off-grid food security.”

Stop guessing. Start knowing. If you're off-grid in Australia, your food audit isn't optional. It's survival. Waste money? You're dead in the water. Here's how to do it right.

1. Production Audit: What You Grow, What You Eat

Don't fall for the "I'll grow it" trap. Track actual yield vs. what you eat. Most Aussies overplant by 300%.

Log everything: Tomato yield (kg), potato harvest (kg), egg count. Not "some veggies".
Check your fridge: If you're not eating 80% of what you grow, stop growing it. Seriously.
Real example: 50kg of zucchini grown → 15kg eaten → 35kg wasted. Stop growing zucchini.

Blunt tip: If you're not eating it within 7 days of harvest, you don't need to grow it. No exceptions. Use a spreadsheet (Google Sheets is free) — no fancy apps needed.

2. Storage Audit: What's Spoiling in Your Shed

Storage isn't "putting it in a box". It's knowing what rots and why. Most off-griders lose 40% of stored food to bad storage.

Check your bins: Are apples next to potatoes? (They kill each other). Is flour in a plastic tub? (Moths will move in). Fix it now.
Track spoilage: Note what spoils in 3 days (onions), 7 days (leafy greens), 30 days (root veggies). Adjust storage.
Australian fix: Use 20L food-grade buckets ($15 at Bunnings) with tight lids. Add silica gel packs ($5 for 10 at Amazon AU) to stop moisture.

Blunt tip: If you're using old milk crates for storage, stop. They let pests in and don't seal. Get proper containers. Your food isn't worth the risk.

3. Waste Audit: What You're Chucking (And Why)

Waste isn't "just scraps". It's money in the bin. Most off-griders waste $200+ monthly on food they didn't need.

Log every thrown-out item: "3 zucchinis (rotten)", "2 apples (moldy)", "1kg potatoes (sprouted)". Be brutal.
Find the cause: Was it bad storage? Overbuying? Not using it fast enough? Fix the root cause.
Real waste fix: Sprouted potatoes? Boil and mash them (add salt, butter). Moldy apples? Make apple sauce (use a $20 slow cooker from Kmart).

Blunt tip: If you're throwing out more than 10% of your food, you're not off-grid — you're just a city dweller with a solar panel. Audit weekly. No excuses.

Practical Aussie Suppliers & Pricing

Stop overpaying for storage. Get it right the first time.

Bunnings: 20L food-grade buckets ($15.95). Get the "Plastic Storage Bin" — not the cheap ones. They last 5+ years.
Kmart: Silica gel packs ($5 for 10). Use them in all storage containers. Prevents 90% of spoilage.
Amazon AU: "FoodSaver Vacuum Sealer" ($129). Worth every cent if you're growing more than 50kg of food. Stops freezer burn.
Local co-ops: Check your local farmers' market for bulk spices. $8 for 500g of dried herbs (vs $15 at Woolworths).

Don't buy fancy "off-grid" storage. It's overpriced. Use what's in your shed now. Fix storage first, then buy better later.

The Bottom Line

Food audit isn't a one-off. It's weekly. If you're not tracking production, storage, and waste, you're wasting money and risking your off-grid life. Do it now. Or keep throwing food away. Your call.

When to Call a Professional

While many off-grid projects are achievable as DIY, certain situations require licensed professionals:

Always check local regulations and obtain necessary permits before commencing work.