Value Village ／ Everyday know-how
This answer is a draft. It stays unpublished until legal review and source verification are complete.
"Rolling stock" (rōringu sutokku) is the Japanese government's name for a simple habit: keep a little more of the food you already eat, use the oldest first, and replace what you use. It turned emergency stockpiling from a separate shelf of unappetising rations into part of the weekly shop.
| Category | Per person for 7 days (Ministry of Agriculture, Forestry and Fisheries guide) |
|---|---|
| Water | 21 L |
| Staple (rice, noodles, crackers) | about 21 meals' worth (e.g. 2 kg rice + packets) |
| Main dishes (retort, canned) | about 21 items |
| Extras (fruit, sweets, drinks) | as preferred — morale matters |
[Verify] Quantities with MAFF's "Disaster Stockpile Guide for Households" and the Cabinet Office site; adjust for infants, elderly, allergies and medical diets.
It is expensive, often unfamiliar, and forgotten until it expires. Food you already like gets eaten in a disaster — appetite drops under stress, and children refuse the unfamiliar.
Salt-heavy, low in protein and fibre, and needing hot water. Balance with canned fish, beans, retort dishes, dried vegetables, and vitamin sources (canned fruit, juice).
The point is integration: it lives in the pantry, eaten in rotation. A separate box gets ignored.
Every shop is a check: when you take one, you buy one. Many households also do a full "stockpile dinner" once a month to keep things moving.
The same shelf covered households during the 2020 supply disruptions and typhoon-related shop closures. Illness and heavy snow are more frequent than earthquakes.
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https://www.maff.go.jp/j/zyukyu/foodstock/guidebook.html
https://www.bousai.go.jp/kyoiku/keigen/gensai/index.html
https://www.caa.go.jp/policies/policy/food_labeling/food_sanitation/expiration_date/
⚠️ Editorial note: the source URLs above were identified by search. Our working environment cannot reach go.jp domains, so the contents have not been checked against the text. Verify every source before publication and record who checked it and when.
What we share here are ideas and everyday practices passed down among people living in Japan, together with general information drawn from public sources. They are not official recommendations, and they are not professional instruction. Practices vary between households and regions.
This is general information. Results vary from person to person and depend on your own conditions and surroundings.
Please decide for yourself, using your own judgement, whether any of this suits your situation. We cannot accept responsibility for any damage, loss or injury arising from following this article.
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