Is it safe to eat raw eggs in Japan — tamago-kake-gohan, sukiyaki dip? Why do foreigners find it surprising?
This answer is a draft. It stays unpublished until legal review and source verification are complete.
Raw egg over hot rice (tamago-kake-gohan), beaten raw egg as a dip for sukiyaki, a raw egg dropped on udon (tsukimi udon). Eating raw egg is an established part of Japanese food culture, while in many other countries "raw eggs are dangerous" is common sense. Here we explain why raw egg works in Japan, and the conditions you still need to keep.
How Japanese eggs are made safe to eat raw
| Item | Details |
|---|---|
| Main risk | Salmonella (especially Salmonella Enteritidis). Present on the shell surface and, rarely, inside the egg |
| On the farm | Vaccination of laying hens, hygiene management of the henhouse, rodent control |
| GP centre (grading and packing plant) | Washing and sanitising (sodium hypochlorite, etc.), inspection (removal of cracked and blood-spotted eggs), packing. The 1998 revision of the Food Sanitation Act made egg labelling compulsory (best-before date, storage method, warning on raw consumption) |
| How the best-before date is set | It is "the date by which the egg can be eaten raw". Based on theoretical values, by temperature, for the number of days before Salmonella starts to multiply (16 days in summer, 25 days in spring and autumn, 57 days in winter), most are set at about 2 weeks after packing |
| Storage | Refrigerate at 10°C or below. Inside the fridge, not in the door (smaller temperature swings). Pointed end down |
| After the best-before date | Cook (centre at 70°C for at least 1 minute, or until yolk and white are firm) before eating. Do not eat raw |
| Once cracked | Eat straight away. Wari-oki (leaving beaten egg at room temperature) is strictly out. Do not touch other food with hands that have touched the shell |
- How this differs from other countries: the US requires shell eggs to be washed and refrigerated; the EU does not wash eggs, relies instead on vaccinating hens. Few countries set the best-before date on the assumption of raw consumption. It is safer not to eat raw egg abroad the way you would in Japan.
- Food poisoning in practice: in the 1990s there were years with several hundred Salmonella outbreaks and more than 10,000 patients a year, but numbers fell sharply once GP centres were established and labelling became compulsory. Today there are around 20–30 outbreaks a year, most caused by undercooked dishes, wari-oki or cracked eggs.
- Cracked eggs: bacteria get in easily through a cracked shell. Do not eat raw any egg that was already cracked when you bought it.
- Who should avoid raw egg: children under 2, older people, pregnant women and people with weakened immunity (MHLW). For them, thoroughly cooked egg dishes.
- Sukiyaki dip: crack one egg per person, just before eating. Beaten egg left on the table for a long time grows bacteria.
- Onsen tamago and soft-boiled eggs: the centre has not reached 70°C, so they do not count as "cooked" and need to be handled like raw egg (within the best-before date, refrigerated, eaten promptly).
[Verify] The theoretical best-before values (16 days in summer, etc.) are based on figures given by the Japan Egg Producers Association; update the Salmonella outbreak count to the latest year of the MHLW food-poisoning statistics.
Misunderstanding 1｜Japanese eggs are worry-free raw
The system lowers the risk a great deal, but not to zero. It works only when all the conditions are met: within the best-before date, no cracks, refrigerated, eaten straight away.
Misunderstanding 2｜The best-before date is about taste, so eggs can still be eaten raw after it
The best-before date on Japanese eggs is set as "the date by which the egg can safely be eaten raw". After it, cook before eating.
Misunderstanding 3｜I can beat the eggs ahead and use them later
Once the egg is cracked, bacteria from the shell get inside and multiply rapidly at room temperature. Wari-oki is a classic cause of food poisoning. Crack just before use.
Misunderstanding 4｜I can have tamago-kake-gohan abroad just like in Japan
Eggs abroad are often not distributed on the assumption of raw consumption. It is safer to avoid it.
Misunderstanding 5｜Children should get used to raw egg early
MHLW advises against raw egg for children under 2. Start with cooked egg dishes.
---
Sources
- Ministry of Health, Labour and Welfare, "On the hygienic handling of eggs" [卵の衛生的な取り扱いについて] (labelling and storage standards under the Food Sanitation Act, 1998)
https://www.mhlw.go.jp/topics/syokuchu/
- Japan Egg Producers Association [日本卵業協会], "Egg best-before dates and Salmonella measures" [たまごの賞味期限とサルモネラ対策]
https://www.nichirankyo.or.jp/
- Ministry of Agriculture, Forestry and Fisheries, "Comprehensive guidelines on Salmonella in hen eggs" [鶏卵のサルモネラ総合対策指針]
https://www.maff.go.jp/j/syouan/
⚠️ 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.
Sources
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