Kewpie hikes prices on 224 products by up to 25%—450g mayonnaise jumps to ¥611

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The story

On September 1, Kewpie announced it will raise prices on 224 household products—including mayonnaise, dressings, and pasta sauces—by 3 to 25%, effective with November shipments. The hikes stem from soaring cooking oil prices as well as rising packaging costs driven by worsening conditions in the Middle East. The company’s flagship Kewpie Mayonnaise (450g) will go from a suggested retail price of ¥559 (tax included) to ¥611. This marks the first mayonnaise price increase in a year, following the last one in September 2025. On 5channel, posters voiced both brand loyalty (“I’ll only buy Kewpie no matter how expensive it gets”) and suspicion toward opportunistic price hikes and manufacturers’ explanations, with the discussion spilling over into dining-out costs and eating habits more broadly.

Kewpie announced on the 1st that it will raise prices by roughly 3-25% on a total of 224 household products—including its mainstay “Kewpie Mayonnaise,” dressings, and pasta sauces—starting with November shipments. The move reflects soaring prices for cooking oil and other ingredients, along with rising packaging costs driven by worsening conditions in the Middle East.

Kewpie Mayonnaise (450 grams) will rise from a suggested retail price of ¥559 (tax included) to ¥611. This is the first mayonnaise price revision since September 2025. A total of 601 commercial-use seasonings, salads, and other products will also see price hikes of roughly 2-38%. The company commented, “We have pursued rationalization and cost-cutting, but it has become extremely difficult to absorb rising costs through corporate effort alone.”

Yomiuri Shimbun, September 1, 2026, 18:45

Source: yomiuri.co.jp / Original article here

What people said

40AnonymousSep 1, 2026 19:37
I only ever buy Kewpie mayo anyway, so I'll keep buying it even if it's pricier.
44AnonymousSep 1, 2026 19:38
Re: #40
Nobody actually thinks that. Who cares.
They're taking consumers for granted—this'll end up just like the rice fiasco.
45AnonymousSep 1, 2026 19:38
I've never actually seen mayo priced that high in stores—what even is this 'list price'?
60AnonymousSep 1, 2026 19:40
Re: #45
You get it cheap because sales reps are out there busting their asses.
Your company has sales guys too, right?
They're the reason you have a job at all.
Buy the guy a drink sometime.
53AnonymousSep 1, 2026 19:39
Wasn't the 450g bottle just ¥199 not that long ago?
241AnonymousSep 1, 2026 19:58
Re: #53
Lol, you don't understand the difference between list price and sale price.
54AnonymousSep 1, 2026 19:39
Is this gonna be like 'Can you poor folks keep up? lol' and they just keep hiking prices forever?
68AnonymousSep 1, 2026 19:42
Re: #54
Honestly, thinking prices would go down while the US is off fighting wars is the weird take here.
Of course prices are shooting up like crazy.
If you guys, who supposedly care the most about the news, don't even get that much, what are you even doing on a news board?
71AnonymousSep 1, 2026 19:42
Re: #54
That game of chicken is kind of hilarious 😁
61AnonymousSep 1, 2026 19:40
It's basically 'safety in numbers'—everyone hikes prices together so no one looks bad.
Sure there are various factors, but do they really need to keep raising prices this much?
64AnonymousSep 1, 2026 19:40
Re: #61
They're hiking now to get ahead of next year's 1-point consumption tax increase.
94AnonymousSep 1, 2026 19:45
I just got back from a trip to the UK, and even a modest meal easily runs you about ¥10,000 per person.
101AnonymousSep 1, 2026 19:45
Re: #94
Eating out is expensive in developed countries in general.
111AnonymousSep 1, 2026 19:47
Re: #94
Seems like Japan alone has fallen behind the global economy. With interest rates rising now, maybe we'll finally catch up to world standards.
108AnonymousSep 1, 2026 19:46
Wait, dressings too?
I only ever buy Kewpie dressing as well…
119AnonymousSep 1, 2026 19:48
Re: #108
Dressing is basically just added salt, you don't really need it.
Once you get used to the natural flavor of vegetables, you stop wanting it.
129AnonymousSep 1, 2026 19:49
Re: #108
It's "Kewpie." (5ch loves correcting the exact katakana spelling of the brand name.)
118AnonymousSep 1, 2026 19:47
Just import it then. Supermarkets don't need to stock this stuff.
125AnonymousSep 1, 2026 19:48
Re: #119
You're supposed to eat vegetables together with oil.
Turns out it wasn't "veggies first," it was "oil first."
130AnonymousSep 1, 2026 19:49
Re: #125
What do you mean "supposed to"? Is there a law about it or something?
143AnonymousSep 1, 2026 19:50
Re: #130
Actually, when researchers reviewed the data behind the long-recommended "veggies first" approach (eating vegetables before other food), it turned out the vegetables in those studies had been dressed with olive oil and the like.
That means it's highly likely the real active ingredient was the "oil," not the vegetables themselves.
Eating vegetables and oil together first is apparently the most effective approach.
151AnonymousSep 1, 2026 19:51
Re: #143
Whether it's effective and whether you're obligated to do it are two different things. It's a personal choice.
163AnonymousSep 1, 2026 19:52
Re: #143
Also not widely known: "veggies first" only works if you eat them 30 minutes before the meal.
138AnonymousSep 1, 2026 19:49
Re: #101
To begin with, other countries impose strict restrictions on the restaurant industry, including caps on the number of stores per area.
Only businesses that actually win the competition survive.
Naturally wages end up higher—or rather, that's the whole point, and pretty much every country built it into law from the moment it was founded.
The only ones that didn't are Japan and South Korea.
That's why the restaurant industry here is cheap, dirty, and grueling, and nobody wants to work in it.
It's not that other countries are expensive—it's that Japan and Korea are the crazy ones.
146AnonymousSep 1, 2026 19:51
Re: #138
I remember eating out in Thailand being dirt cheap, though.
154AnonymousSep 1, 2026 19:51
Re: #146
Is Thailand even a developed country?
160AnonymousSep 1, 2026 19:52
Tried the dirt-cheap mayo from Gyomu Super (a discount supermarket chain) and it was so bad I threw it out.
Hate to admit it, but I can't eat anything but Kewpie.
175AnonymousSep 1, 2026 19:53
Re: #160
Say what you want, but Kewpie's flavor really is untouchable compared to other brands.
188AnonymousSep 1, 2026 19:54
Re: #160
It's "Kewpie." (5ch loves correcting the exact katakana spelling of the brand name.)
167AnonymousSep 1, 2026 19:52
Re: #154
The post you're replying to just said "other countries" in general, though.
185AnonymousSep 1, 2026 19:53
Mayo's mayo, just buy the store-brand (private label) version.
190AnonymousSep 1, 2026 19:54
Re: #185
Those have been steadily going up in price too, you know.
199AnonymousSep 1, 2026 19:54
Re: #185
My tongue's been enslaved by Kewpie—couldn't accept anything else.

Background and key points of this discussion

This marks a second price hike for Kewpie in a short span of time—mayonnaise already saw a similar revision in September 2025, so this is a repeat increase in under a year. Comments in the thread like “I used to get it for ¥199” point to a common mix-up between the suggested retail price (list price) and discounted sale prices, meaning there’s a gap between real shelf prices and the announced ¥559/¥611 figures. Rising packaging costs tied to petroleum derivatives, driven by Middle East tensions, are a factor cited across the food industry in recent years, not something unique to Kewpie. Reactions in the thread show both loyalty to the brand (“I won’t buy anything but Kewpie no matter the price”) and skepticism toward opportunistic hikes and manufacturers’ justifications existing side by side, rather than splitting into a simple for-or-against debate.

*This article is compiled and summarized from the 5channel (Breaking News+) thread “Kewpie to raise prices on 224 core products by 3-25%… 450g mayonnaise goes from ¥559 to ¥611 (tax included).”

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