How to Build a 30-Day Food Supply for $200
A month of emergency food doesn't have to cost a fortune. This practical guide shows you how to build it incrementally using everyday supermarket staples.
By ReadyNotRich · Emergency preparedness guidance for everyday households · Published 22 May 2026
Expensive freeze-dried meal kits are marketed heavily at preppers. But the honest truth: a 30-day food supply built from bulk supermarket staples costs a fraction of the price and tastes better too.
The $200 Staples List
Focus on high-calorie, low-cost, long-shelf-life foods. A base of white rice, dried beans, oats, and peanut butter covers your caloric needs. Add tinned fish and vegetables for nutrition. Buy incrementally — add a few extra items each weekly shop.
Storage Done Right
Mylar bags with oxygen absorbers extend the shelf life of dry goods from 1–2 years to 20–25 years. A starter pack costs around $22 and is one of the highest-leverage preparedness purchases you can make.
Mylar Bags + Oxygen Absorbers (50-pack)
Store bulk rice, beans, oats, or pasta for up to 25 years. Essential for a long-term pantry.
Calorie Counting Made Simple
Adults need roughly 2,000 calories per day. White rice: ~1,600 calories per pound. Dried lentils: ~1,600 calories per pound. Peanut butter: ~2,600 calories per pound. A 20lb bag of rice, 10lb of lentils, and 5lb of peanut butter alone provides roughly 3 weeks of calories for one person.
Rotate, Don't Hoard
The best food storage is food you actually eat. Don't buy things you'd never normally eat — just buy more of what you do eat and rotate through it. This keeps your stock fresh and your costs down.
Frequently asked questions
How do I build a 30-day emergency food supply on a budget?
Build a 30-day emergency food supply by adding 2–3 extra items to your weekly shop: rice, dried lentils, tinned beans, oats, peanut butter, and tinned fish. Store in mylar bags with oxygen absorbers for long shelf life. A month's supply for one person costs around $50–80 using supermarket staples.
What foods should I stockpile for emergencies?
The best emergency stockpile foods are white rice (25-year shelf life), dried lentils and beans, oats, peanut butter, tinned fish, tinned tomatoes, and olive oil. Focus on calorie-dense, long shelf-life items you already eat. Avoid freeze-dried meals as your main stock — they're expensive per calorie.
How many calories do I need per day in an emergency?
Adults need roughly 2,000 calories per day. White rice provides about 1,600 calories per pound, dried lentils about 1,600 calories per pound, and peanut butter about 2,600 calories per pound. A 20lb bag of rice, 10lb of lentils, and 5lb of peanut butter provides approximately 3 weeks of calories for one person.
How long does emergency food last in storage?
Properly stored white rice lasts 25+ years in mylar bags with oxygen absorbers. Dried lentils and beans last 25–30 years. Tinned goods last 2–5 years. Oats last 30 years in mylar bags. Peanut butter lasts 1–2 years. Always label containers with the fill date and rotate through the oldest stock first.