Matsuya's Official X Reports Eating 'Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal'

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title: “Matsuya’s Official X Reports Eating ‘Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal’” categories:

• official tags:
• x
• store-limited
• ate published: true created_at: “2026-05-27T18:57:43+09:00” updated_at: “2026-06-14T13:19:16+09:00” thumbnail: “https://cdn.gyumesy.com/articles/cther6/thumbnail.webp” ogp_image: “https://cdn.gyumesy.com/articles/cther6/ogp.png” source_url: “https://x.com/matsuya_foods/status/2059574658828296593” editor_comment: “Part 2 of the Test Sale Festival comes with a 27-character name. The account’s staffer simply hands readers the question ‘Was there ever a longer one?’ — a full festival mood.” description: “On May 27, 2026 at 6:57 PM, Matsuya’s official X account posted an eating report for the store-limited ‘Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal’ (990 yen). The post asks readers, ‘Has there ever been a product name longer than this…?’, and positions the item as Part 2 of the Test Sale Festival.” related_articles:
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On May 27, 2026 at 6:57 PM, Matsuya’s official X account (@matsuya_foods) posted a report on eating the store-limited ‘Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal’ (990 yen), which went on sale at 10:00 AM on May 26. It is the eating-report post for Part 2 of the ‘Test Sale Festival’ declared on May 26, following the ‘Hamburg Steak with Black Carbonara Sauce’ post at 8:41 PM the previous day, May 26.

Original Post

Another test-sale menu item today (╹◡╹)

It’s the “Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal”!

Has there ever been a product name longer than this…?🤔 If you know of one, please tell us.

↓Stores selling it are here↓ (store locator link)

#Matsuya #WhileSuppliesLast #SorryIfItsSoldOut

The opening “(╹◡╹)” is an emoticon that has become a fixture of the eating-report posts since April. “Another test-sale menu item today” signals the continuation of the “This week is ‘Test Sale Festival’” declaration made the day before. After quoting the product name, the post asks readers in its second half, “Has there ever been a product name longer than this…?”, inviting them to share past examples.

A 27-Character Product Name, Among the Longest of Recent Matsuya Menu Items

‘Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal’ is a long product name of 27 characters in the original Japanese. Compared with past store-limited and limited-time menu items, the character count stands out.

Product name	Characters	Category
Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal (this item)	27	Store-limited
Chunky Stewed Tandoori Chicken Loin Katsu Curry and Rice	23	Store-limited
Yatarazuke Beef Bowl / Yatarazuke Hamburg Steak Set Meal	20	Store-limited
Set Meal of Grilled Thick Pork with Chimichurri Sauce	19	Limited-time
Tomato Hamburg Steak Meal w/ Half-and-Half Beef	18	Limited-time

Among Matsuya’s recent new products, this item’s 27 characters are among the longest. The name strings together the ingredient (mushroom duxelles), the cooking modifier (served with), the descriptors (rich umami / thick), the main dish (stew hamburg steak) and the format (set meal) in one long run — the result of packing the ‘bistro style’ of the ‘Bistro Matsuya’ series into the product name.

The ‘Bistro Matsuya Revival’ Pitch

The top of the promotional poster carries a large ‘BISTRO MATSUYA / Bistro Matsuya Revival’ logo, making clear that a past series is returning. The poster copy reads, “Concentrated umami from mushroom duxelles, and a jet-black sauce of cacao x Maruya Hatcho Miso. Mingling with the meat juices, a masterpiece of Matsuya-style bistro cooking.” The sauce used is the “jet-black sauce of cacao x Maruya Hatcho Miso.” In the eating photo, the hamburg steak sits on an iron plate filled with the jet-black sauce, topped with mushroom duxelles, with a white mashed-potato-like ingredient alongside. A Macky & Yakky stamp and an “Delicious” speech bubble are composited into the lower left of the image.

The Flow of May’s Eating Reports

Eating-report posts since May have continued at a near-daily pace, and this stew hamburg steak is the 12th. In terms of the ‘Test Sale Festival’ week, it is Part 2 (following the previous day’s Black Carbonara).

Date	Item eaten	Category
May 2	Salt-based Green Onion Bowl	Bowl
May 3	Chunky Stewed Tandoori Chicken Loin Katsu Curry and Rice	Curry (store-limited)
May 4	Iburigakko Beef Bowl	Beef bowl (regional)
May 5	Taco Rice	Other
May 6	Yatarazuke Beef Bowl	Beef bowl (test sale)
May 7	Hiyajiru / Chicken Nanban	Regional (Miyazaki)
May 13	Butter Chicken Curry and Rice	Curry
May 14	Okra and Grated Domestic Yam Paste Beef Bowl	Beef bowl (test sale)
May 18	Beef Bibimbap Bowl	Bowl
May 19	Set Meal of Grilled Thick Pork with Chimichurri Sauce	Set meal (pork)
May 26	Hamburg Steak with Black Carbonara Sauce	Set meal (hamburg steak, test sale)
May 27 (this item)	Hamburg Steak in Rich Umami Stew with Mushroom Duxelles Set Meal	Set meal (hamburg steak, test sale)

Of the three items previewed in the ‘Test Sale Festival’ declaration (May 26) — Black Carbonara, the stew hamburg steak and Yulinji — the stew hamburg steak has now been covered today. One item remains: the ‘Yulinji Set Meal’.

The “Longer Product Name” Question Is a New Pattern

The second half of the post — “Has there ever been a product name longer than this…?🤔 / If you know of one, please tell us.” — is a new question structure among the eating reports since May.

Date	Question / reader-participation element
May 2 (Salt-based Green Onion Bowl)	“What’s your favorite topping?” (topping question format)
May 18 (Beef Bibimbap Bowl)	“Which year’s Bibimbap bowl do you prefer?” (soliciting memories)
May 23 (quiz)	“Which one is Touchin in Amakurisotsu?” (three-choice quiz)
May 27 (this item)	“Has there ever been a product name longer than this…?” (soliciting past examples)

After toppings, preferences and quizzes, the approach of ‘asking readers for past comparisons’ has been added as a new pattern. The stance of the account’s staffer (‘nakano hito’) themselves asking readers to “tell us” sits alongside the self-description as a ‘Matsuya geek’ in the May 14 okra and grated yam post, a casual-leaning tone, and during the Test Sale Festival week the official account’s sense of distance from readers has grown a notch closer.