いっちょうIcchou
Franchise
Not found online (checked)
Based on checking the official site as of August 2026. What is published can change.
The official food menu booklet states that the chain boils its soba and its udon in the same pot (a note at the foot of the booklet's pages; the separate otsumami booklet carries no such note). If you have a buckwheat allergy, treat the udon as liable to carry buckwheat too.(machine translation)
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公式のお食事メニュー冊子に、そばとうどんを同じ釜でゆでているとの記載があります(冊子のページ下部の注意書き。おつまみメニューの冊子には同じ記載はありません)。そばアレルギーがある場合は、うどんにもそばが混入する可能性があるとお考えください。
How you are told you can check
No per-dish allergen list is published, either in the menu booklet or on the official site. Each branch's phone number is in the shop list on the official site, but calls are answered first by an automated AI voice; say that you want to speak to a member of staff and you are put through to one. The official site's enquiry form also takes questions about Icchou and Manya (it does not take reservations).(machine translation)
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料理ごとのアレルゲン一覧は、メニュー冊子にも公式サイトにも掲載されていません。各店舗の電話番号は公式サイトの店舗一覧に載っていますが、電話にはまずAIの自動音声が応答します。スタッフと直接話したい旨を伝えると担当者に代わります。公式サイトのお問い合わせフォームでも いっちょう・萬家 についての質問を受け付けています(ご予約はフォームでは受け付けていません)。
What we checked
As of August 2026, we looked in these places.
Look for places that do publish allergen information
Differences between stores
The material states that the menu offered differs between stores.
Which dishes are served differs from branch to branch. The official site's menu page carries separate recommended and branch-only menus for some of the branches.(machine translation)
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取り扱うメニューは店舗によって異なります。公式サイトのメニューページには、一部の店舗だけのおすすめメニューや店舗限定メニューが別に掲載されています。
Please confirm at the store you are visiting.
Details
Official Site & Links
Menu names in your language are machine-translated.
Found an error in the allergen information?
Please tell us if anything here differs from the official information. Safety-related reports take priority, and we hide the affected entry until we have checked it. If you are about to eat, please check with the venue rather than waiting for us.
Report an error in this allergen information