Short answer. The Ministry of Agriculture (MAFF) publishes a model one-week home stock for two adults: 48 litres of water, a cassette gas stove with 12 cartridges, rice, noodles, pasta, 18 retort meals and 18 cans, among other items 1. It follows the government benchmark of at least 3 days and ideally 1 week, with 3 litres of water per person per day 21.
What is on MAFF's one-week list for two adults?
| Item | Quantity (2 adults, 1 week) |
|---|---|
| Water | 2 L × 6 bottles × 4 cases (48 L) |
| Portable gas stove (cassette stove) | 1 |
| Gas cartridges for the stove | 12 |
| Rice | 2 kg × 2 bags |
| Somen noodles | 2 bags (300 g each) |
| Pasta | 2 bags (600 g each) |
| Instant cup noodles | 6 |
| Microwaveable packed rice | 6 |
| Retort pouch meals (gyudon topping, curry, etc.) | 18 |
| Pasta sauce (retort) | 6 |
| Canned meat or fish | 18 cans |
| Long-keeping vegetables (onions, potatoes) | as appropriate |
| Seasonings (sugar, salt, soy sauce, noodle broth) | as appropriate |
| Umeboshi, nori, dried wakame | as appropriate |
| Vegetable or fruit juice | as appropriate |
| Instant miso soup or instant soup | as appropriate |
Source for all rows: MAFF, aff magazine, March 2026 1. The list is sized for two adults over one week; the water rate behind it is 3 litres per person per day 1.
Which everyday items does the Prime Minister's Office add?
| Item | Quantity |
|---|---|
| Toilet paper, tissues | not specified |
| Portable / emergency toilets | not specified |
| Matches, candles | not specified |
Source: Prime Minister's Office, What you can do before a disaster 3.
What goes in the Cabinet Secretariat go-bag?
The civil-protection pamphlet lists, for a bag to take when evacuating 4:
- Portable drinking water
- Food: cup noodles, canned food, biscuits, chocolate
- Valuables and ID
- Portable radio and spare batteries
- Torch
- Helmet or padded disaster hood
- Lighter, matches, candles
- Clothes
- Blanket
- Work gloves
- Wet wipes
- Disposable warmers
For chemical, biological or nuclear attacks, the pamphlet adds gloves, a hat, goggles, a raincoat and a mask or folded cloth 4.
Its 3-day home stock per person: 9 L of water (3 L × 3 days), 4-5 servings of alpha rice, 2-3 cans, 1-2 boxes of biscuits and 2-3 chocolate bars 4.
How do I keep the stock usable?
Check dates and replace what you use. Our guides cover rotation (/guides/food-shelf-life), documents and cash (/guides/important-documents), first aid (/guides/first-aid-kit) and radios (/guides/emergency-radio).
Turn this list into your plan
The official list above is the reference, and you can assemble everything on it yourself. The Phaenyx plan counts each line for your household, adds the risks around your home and comes with the Phaenyx Safe app. Build your Phaenyx plan.
Frequently asked questions
How much water should each person store in Japan?
3 litres per person per day, for drinking and cooking 1; MAFF's one-week example for two adults is 48 litres 1.
Is alpha rice on the official list?
The Cabinet Secretariat pamphlet's 3-day stock includes 4-5 servings of alpha rice per person 4. MAFF's list uses ordinary rice and microwaveable packed rice instead 1.
Do I need a radio?
The Cabinet Secretariat go-bag includes a portable radio with spare batteries 4.
Sources
- 農林水産省 (MAFF) — 知って備える 家庭備蓄のイロハ（aff 2026年3月号 特集） — https://www.maff.go.jp/j/pr/aff/2603/spe1_01.html (accessed 2026-10-20)
- 内閣官房 (Cabinet Secretariat) — 緊急事態を想定した避難施設（シェルター）の確保に関する基本方針（令和８年３月31日閣議決定） — https://www.kokuminhogo.go.jp/pdf/hinan/260331shelter_hontai.pdf (accessed 2026-10-20)
- 首相官邸 (Prime Minister's Office) — 災害が起きる前にできること — https://www.kantei.go.jp/jp/headline/bousai/sonae.html (accessed 2026-10-20)
- 内閣官房 (Cabinet Secretariat) — 武力攻撃やテロなどの緊急事態から身を守るために（パンフレット） — https://www.kokuminhogo.go.jp/gaiyou/shiryou/hogo_manual.html (accessed 2026-10-20)
Turn this into action
Your plan for Japan, worked out for your household.
- Water, food and equipment counted for each person and pet
- The nuclear plants and zones around your home
- Phaenyx Safe: one tap to tell your people you are safe
Sources
- 農林水産省 (MAFF) · 知って備える 家庭備蓄のイロハ（aff 2026年3月号 特集） checked 2026-10-20
- 内閣官房 (Cabinet Secretariat) · 緊急事態を想定した避難施設（シェルター）の確保に関する基本方針（令和８年３月31日閣議決定） checked 2026-10-20
- 首相官邸 (Prime Minister's Office) · 災害が起きる前にできること checked 2026-10-20
- 内閣官房 (Cabinet Secretariat) · 武力攻撃やテロなどの緊急事態から身を守るために（パンフレット） checked 2026-10-20