Formaldehyde Found in Chinese Napa Cabbage After Video Goes Viral — What Does It Mean for Japan?

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A video showing Chinese napa cabbage being “chemically treated” with formaldehyde has gone viral, prompting Japan’s Ministry of Health, Labour and Welfare to say it is “still checking” whether the produce has entered Japan’s supply chain. On 5ch, posters worried about routes into children’s mouths, like school lunches, while others pointed to everyday Chinese-made foods — frozen gyoza, processed eel products — raising questions about how big the risk really is.

“Formaldehyde” Found in Chinese Napa Cabbage After “Chemical-Soaked” Video Spreads Online — Fallout Reaches South Korean Kimchi Too — What Does It Mean for Japan? Health Ministry Says “Still Checking”

Napa cabbage — a staple in hot pots, kimchi, and everyday cooking — is one of the most familiar vegetables on the dinner table.

On the 25th, in China, the world’s largest producer of the vegetable, a news crew witnessed cabbage being pulled from store shelves and thrown out.

Source: news.yahoo.co.jp / Original article here

18Anonymous2026/08/25(火) 21:37:33.14ID:E8VbBBUn0
Eating Chinese-made food is on you at this point — pay extra for domestic if you're worried.
25Anonymous2026/08/25(火) 21:38:32.08ID:ZdICxwDd0
>>18
True for home cooking, but school lunches could be feeding this to kids without them having any say in it.
23Anonymous2026/08/25(火) 21:38:12.70ID:LxHdWFHT0
It's a leaf vegetable. Get your reporters out there, News Station! (a major TV Asahi evening news program)
37Anonymous2026/08/25(火) 21:41:02.63ID:WBPzdJ6u0
>>23
Who needs to go report when they've got plenty of "experts" sitting right there in-house?
161Anonymous2026/08/25(火) 22:02:41.27ID:aASSZiU00
>>23
When it hits close to home they'll just wheel out a commentator, gloss over it, and call it done.
52Anonymous2026/08/25(火) 21:43:22.07ID:qDBbIHz40
They don't even sell Chinese napa cabbage here, do they? And I don't eat processed cabbage products anyway.
63Anonymous2026/08/25(火) 21:45:23.99ID:M5bJmGnC0
>>52
Pretty sure frozen gyoza made with Chinese napa cabbage is on shelves everywhere.
64Anonymous2026/08/25(火) 21:45:37.69ID:6vsXx/+S0
Meanwhile, Chinese state media is out here patting itself on the back:
"Meanwhile, China has for many years been gradually building a relatively rigorous end-to-end food safety and traceability system, including multiple stages such as soil testing, pesticide residue testing, finished-product inspection, and customs inspection."
Self-praise much.
86Anonymous2026/08/25(火) 21:48:33.50ID:ETo979850
>>64
Note the word "gradually." At least they're not telling a bald-faced lie — I guess that counts as progress lol
67Anonymous2026/08/25(火) 21:45:55.57ID:Ucu5G5RY0
China is genuinely terrifying. A worker at a Chinese seafood market was filmed brushing fish with a mixture of red koji dye (a cochineal-based red dye) and formaldehyde before shipping them out. The treatment is meant to make old fish look bright and fresh.
https://x.com/BlueHawk1378/status/2058535219771424853
117Anonymous2026/08/25(火) 21:53:57.19ID:PK3PIAEQ0
>>67
The worker's getting exposed just from breathing the fumes.
92Anonymous2026/08/25(火) 21:49:27.00ID:wmigPD0d0
Feels like cancer rates have been climbing, doesn't it.
102Anonymous2026/08/25(火) 21:51:26.93ID:4NFGwYas0
>>92
Chinese napa cabbage barely circulates in Japan — never even heard of it being sold here — so if that's your worry, it's gotta be something else.
160Anonymous2026/08/25(火) 22:02:35.63ID:8Nx+VO+I0
>>102
Frozen food, restaurants, retort pouches… like that Nagatanien miso soup that's been in the news lately.
100Anonymous2026/08/25(火) 21:51:14.08ID:r4Pi3TU50
Why is that country like this?
107Anonymous2026/08/25(火) 21:52:16.55ID:4NFGwYas0
>>100
It's not just China with the formaldehyde thing — Southeast Asia does the same. It's been standard practice there forever.
114Anonymous2026/08/25(火) 21:53:31.14ID:6vsXx/+S0
>>100
Their whole value system boils down to "does it make money or not." So they'll do something shady if it turns a profit — and sometimes they don't even register it as wrong in the first place.
105Anonymous2026/08/25(火) 21:51:55.05ID:Ucu5G5RY0
Top 10 Chinese-Made Food Products:
① Frozen vegetables
② Onions
③ Green onions
④ Carrots
⑤ Wood ear mushrooms
⑥ Boiled bamboo shoots
⑦ Garlic
⑧ Eel
⑨ Frozen shrimp
⑩ Frozen gyoza / Chinese-style side dishes

Of all eel sold in Japan, about 89% is Chinese-made (2023). For processed products like kabayaki (grilled eel), a staggering ~99.6% is Chinese-made (2023).
Basically we're talking 90-100% Chinese-sourced across the board 😂
https://x.com/Ondoreahoka/status/2090356465060188503
131Anonymous2026/08/25(火) 21:56:14.59ID:DeAsKNrF0
>>105

Even people in China were speechless, saying "this is industrial-grade stuff." The horrifying "formalin eel."
https://bunshun.jp/articles/-/5204

lol
116Anonymous2026/08/25(火) 21:53:36.71ID:WacJ8sxg0
I don't care if it costs more, let's grow our own vegetables here in Japan.
166Anonymous2026/08/25(火) 22:03:44.09ID:8Nx+VO+I0
>>116
People won't buy it though.

Japan lost on price. "Cheap and a good deal" — meanwhile there's rice even Chinese consumers won't touch.
120Anonymous2026/08/25(火) 21:54:11.92ID:5FjU92R00
Hasn't this been said for over 20 years already? That's exactly why vegetable-washing appliances are so popular in China.
125Anonymous2026/08/25(火) 21:55:17.29ID:4NFGwYas0
>>120
Same reason detergent was a big trend in Japan back in the day lol
123Anonymous2026/08/25(火) 21:54:55.12ID:7ehs0k4z0
Even people back in China are furious, and the CCP itself is treating it as a scandal ("this shall not be forgiven, aru" lol — a jab at a stereotyped broken-Japanese speech pattern often mockingly attributed to Chinese speakers), so this must be pretty bad lol. Probably game over if you actually ate it lol
136Anonymous2026/08/25(火) 21:56:50.08ID:4NFGwYas0
>>123
For what it's worth, studies haven't confirmed a link between low-dose formaldehyde and cancer. If you only ate it occasionally you're probably fine. Eating it every day, though… who knows lol
142Anonymous2026/08/25(火) 21:58:40.37ID:pIbMiwZt0
I saw in the news recently that colorectal cancer risk factors are apparently rising in people under 40 or so — wonder if this is related.
156Anonymous2026/08/25(火) 22:01:30.97ID:4NFGwYas0
>>142
No way that's related lol
171Anonymous2026/08/25(火) 22:05:10.40ID:JHa2hJQv0
>>142
Not eating enough vegetables and eating too much meat is definitely a bigger factor.
185Anonymous2026/08/25(火) 22:09:21.75ID:Ucu5G5RY0
Flies swarm around the meat buns and spring rolls processed in Chinese factories, so you could end up eating flies without even knowing it. Once they get mixed into ground meat, they're especially hard to spot.
https://x.com/kuniyoshi_shino/status/2038787482456895577
217Anonymous2026/08/25(火) 22:17:48.59ID:Kh5xKhdG0
>>185
Flies rolled up in the spring rolls is bad enough, but the filling itself already looks like some unidentifiable paste.
186Anonymous2026/08/25(火) 22:09:31.05ID:vwhvr0pi0
Might be unrelated to this particular story, but I often notice a weird bitterness in Chinese food.
192Anonymous2026/08/25(火) 22:11:27.02ID:4NFGwYas0
>>186
For one thing, the vegetable varieties are different from Japan's. Japanese vegetables are bred to be really sweet. You might just be perceiving the lack of sweetness as bitterness.
225Anonymous2026/08/25(火) 22:19:36.23ID:rC8JRbCi0
>>186
Even cucumbers have that harsh bitterness if you don't draw it out first. Same with potatoes and eggplant — that's why you soak them in water.

*This article is excerpted and summarized from the 5ch (News Express+) thread “Formaldehyde Found in Chinese Napa Cabbage After ‘Chemical-Soaked’ Video Spreads Online — What Does It Mean for Japan? Health Ministry Says ‘Still Checking’.”

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