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If you want to prepare emergency food for a two-person household for under 10,000 yen, how to choose an 18-meal set?
Updated Oct 16, 2026・price checked Oct 16, 2026
On a night when a power outage also stops the gas, how do you prepare meals for two people over three days? Before the contents of your fridge spoil, you'll want to secure at least 18 meals' worth of staple food first. This article introduces one emergency food set that covers 2 people × 3 days in a single product.
Yuuen's pick
If you want to prepare emergency food for a two-person household for under 10,000 yen, the Onisi Foods emergency food set (18 meals for 2 people) is a candidate. It is chosen on the assumption that you will separately prepare drinking water at 3L per person per day × 3 days = 18L.
* Re-picking uses one of your searches.
Before you buy
Because the expiration date is counted from the manufacturing date, the remaining shelf life may already be shorter than expected by the time it arrives, depending on when you purchase it. Check the product page for the remaining shelf life as of shipping.
How to choose
- First calculate the number of meals needed
The amount of emergency food needed is calculated as number of people × number of days × meals per day. For a two-person household preparing for 3 days, 2 people × 3 days × 3 meals = 18 meals is the minimum guideline.
Source: Ministry of Agriculture, Forestry and Fisheries - Prepare water separately at 3L per day
The guideline is 3L per person per day, so for a two-person household over 3 days you need 18L. Emergency food sets usually include only a very small amount of water, so you need to prepare additional water separately, such as bottled water.
- Check the cooking method and shelf life
Some items need to be reconstituted with hot water or water, while others can be eaten immediately after opening; having both types lets you adapt to the situation during a disaster. Shelf life is typically around 5 years, which gives you a guideline for when to next replace your stock.
- Check for lack of variety in meal types
A set with only staple foods can get boring if it lasts 3 days. Check whether you can prepare side dishes or soups separately, and review the breakdown of what's included in the set.
Who it's for / who it isn't for
Who it's for- People who want to stock up on 3 days' worth of staple food for a two-person household at once
- People who want emergency stock that only needs checking once every 5 years
- People looking for emergency food that doesn't require adding extra cooking tools or dishes
Who it isn't for- Not suitable for those who want to stock up on water as well; preserved water is rarely included.
- Not suitable for those who want side dishes or soup in addition to staple food; the set is centered on staple foods.
Comparison
| Item | Price | Number of meals | Shelf life | Cooking method | Why not this one |
|---|---|---|---|---|---|
| Onisi Foods 18-meal set for 2 people for 3 days | 6,980 yen | 18 meals | 5 years | Use hot water or water / ready to eat after opening | — |
| Onisi 18-meal set (supervised by a disaster prevention specialist) | 7,649 yen | 18 meals | 5 years | Use hot water or water / ready to eat after opening | The contents and shelf life are almost the same; it costs 669 yen more, and aside from being supervised by a disaster prevention specialist, there's no major difference. |
| 18-meal + 4L preserved water set | 8,520 yen | 18 meals | 5 years (water: 10 years) | Use hot water or water / ready to eat after opening + preserved water | The preserved water is only 4L, far short of the 18L needed for 2 people over 3 days. |
| Onisi portable rice ball 21-meal set | 8,190 yen | 21 meals | 5 years | Use hot water or water only | The set is made up only of onigiri, with no bread or other staple food types, making meals monotonous. |
★ = our pick. Values are from the product pages.
Why this one
The total of 18 meals — 6 bags of alpha rice, 6 portable onigiri, and 6 Hidamari bread — matches exactly the required amount of 3 meals × 3 days × 2 people. The price per meal is about 388 yen (6,980 yen ÷ 18 meals).
The best-before date is 5 years from manufacture, giving a long grace period until the next time you need to replace the contents. Compared to emergency food that needs yearly checks, this greatly reduces how often you need to manage it.
Alpha rice only needs to be reconstituted with hot or cold water, and Hidamari bread can be eaten immediately after opening. Even during a power outage when gas can't be used, all 18 meals can be eaten without needing a spoon.
Downsides
- If you have no way to boil water, reconstituting alpha rice with cold water takes around 60 minutes.
- Since the best-before date is calculated from the manufacturing date, the remaining shelf life may already be shorter by the time it arrives.
- All 18 meals are staple foods (rice, bread, onigiri) and do not include side dishes or soup.
If you're in a different situation
18-meal + 4L preserved water set￥8,520In addition to the 18 meals, it comes with two 2L bottles of 10-year preserved water, for 8,520 yen, reducing some of the need to buy water right after purchase.
The contents and shelf life are almost the same, but since it's labeled as supervised by a disaster-prevention specialist (bosaishi), it suits those who value that basis for their choice.
We gather items rated 4 stars or higher with 30+ reviews on Rakuten and Yahoo! Shopping, AI picks the one that fits the conditions, and Yuuen (Shin Nihon Sangyo Co., Ltd.) checks it before publishing. We choose one item and show how it differs from the runners-up. Prices as of Oct 16, 2026.
Re-pick with your conditions
Change the budget or number of people, and Yuuen picks one item for that.
* Re-picking uses one of your searches.
FAQ
- How many meals of emergency food should a two-person household prepare?
- 2 people × 3 days × 3 meals = 18 meals is the guideline. This emergency food set covers exactly 18 meals with a combination of alpha rice, portable onigiri, and bread.
- Is the emergency food set alone enough for water too?
- No, it is not enough. Since about 3L per person per day is the guideline, a two-person household would need 18L of water for 3 days. This set does not include water, so you need to prepare bottled water or similar separately.
- Can it be bought for 10,000 yen or less?
- Yes. This emergency food set costs 6,980 yen, and shipping is also free.
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