What are the common misunderstandings about food waste in Japan?

This answer is a draft. It stays unpublished until legal review and source verification are complete.

Food waste (食品ロス, shokuhin rosu — the Japanese term for food thrown away that could still have been eaten) is usually discussed as a problem for businesses. Japan's national estimate says otherwise: half of it comes from homes. If you live here, that half includes your kitchen.

The national estimate

Estimate by the Ministry of the Environment and the Ministry of Agriculture, Forestry and Fisheries (published 27 June 2025):

The total fell by 80,000 tonnes from the previous year, but household waste slightly exceeds business waste. The reduction target for fiscal 2030 has not yet been reached.

[Verify] Figures are from the Ministry of the Environment press release. Update to the latest fiscal year at the time of publication.

Misunderstanding 1｜Not much comes from homes

More than half comes from homes. See the table above.

Misunderstanding 2｜It is all leftovers

It also includes food thrown away untouched (直接廃棄, "direct disposal") and edible parts cut away with the peel and trimmings (過剰除去, "excessive removal").

Misunderstanding 3｜Once the date arrives, there is nothing to do but bin it

The best-before date (賞味期限, shōmi kigen) is the date up to which food tastes as it should. Simply knowing how it differs from the use-by date (消費期限, shōhi kigen) changes how much you throw away (see #78 and #83).

Misunderstanding 4｜Fewer shopping trips means less waste

Bulk buying works the other way if you cannot use it all up. Buying only what you can finish is the surer route.

Misunderstanding 5｜Taking from the front of the shelf means less fresh food

For food you will eat soon, shoppers are encouraged to take from the front of the shelf (you will see 手前どり, temae-dori, signs in shops). It is an effort to reduce unsold stock ending up as waste.

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Sources

• Ministry of the Environment, press release "Publication of the estimated volume of food loss in Japan (FY2023)" [我が国の食品ロスの発生量の推計値（令和５年度）の公表について] (27 June 2025)

https://www.env.go.jp/press/press_00002.html

• Ministry of Agriculture, Forestry and Fisheries, "Business-sector food loss (2023 estimate) published" [事業系食品ロス量（2023年推計値）を公表]

https://www.maff.go.jp/j/press/shokuhin/recycle/250627.html

• Consumer Affairs Agency, "Reference materials on food loss reduction" [食品ロス削減関係参考資料] (27 June 2025 edition)

https://www.caa.go.jp/policies/policy/consumer_policy/information/food_loss/efforts/assets/consumer_education_cms201_250627_04.pdf

⚠️ 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.

About this article

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.

Some ingredients need thorough cooking. Eat raw only foods that are sold for raw consumption. If you have allergies, check the ingredients.

If anything about the food seems wrong, do not eat it.

Sources

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