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Chef Ahn Seong-jae’s Apology: What Went Wrong at Michelin-Starred Mosu Seoul?

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Ahn Seong-jae / Photo=DB

[Sports Today reporter Song O-jeong] Chef Ahn Seong-jae’s restaurant has issued an apology after allegations surfaced that a wine served during a pairing was swapped.

On April 23, 2026, Mosu Seoul posted on its official social channels a public apology, saying, \”We bow our heads and offer our sincere apologies regarding the matter recently reported on online communities.\”

Mosu explained that on April 19, 2026, during a wine-pairing service, staff failed to give customers clear, accurate guidance, which caused confusion. They added that their follow-up explanations were insufficient and that they deeply regret the disappointment this caused.

The restaurant said it offered a separate apology to the affected customer, who graciously accepted it. Still, Mosu acknowledged that, given the expectations placed on the restaurant, that response fell short and must be taken seriously.

Mosu said Chef Ahn and the entire team are treating the incident with the utmost seriousness. \”We will review all related services and take steps to prevent recurrence,\” the statement read. \”We will not limit this to a performative apology; we will rebuild trust with genuine action.\”

The controversy began after a post on an online community claimed that diners at Mosu Seoul experienced a wine substitution, sparking public concern. The poster alleged a wine that should have been a 2000 vintage was served as a 2005 vintage.

Ahn gained wider recognition as a judge on the Netflix series Black & White Chefs: Culinary Class War. Mosu Seoul, where Ahn is owner-chef, is a two-Michelin-star fine-dining restaurant that has grown in reputation alongside his rising profile.

▲Below is Mosu Seoul’s full statement

Hello, this is Mosu Seoul.

We bow our heads and offer our sincere apologies regarding the matter recently reported on online communities.

On April 19, 2026, during our wine-pairing service, we failed to provide customers with accurate guidance, which caused confusion. We also did not provide sufficient explanation during our subsequent response, and we sincerely apologize for the deep disappointment this caused.

After the incident, we apologized separately to the customer and they accepted our apology graciously. Nevertheless, in light of the expectations customers place on our restaurant, we take seriously that our response still fell short.

Chef Ahn Seong-jae and everyone on the Mosu team are treating this matter very seriously. We will review all related services and promise to prevent recurrence. We will not stop at a show of apology; we will work sincerely to rebuild trust with our customers.

We apologize again to all customers who have shown Mosu Seoul their continued trust and affection.

April 23, 2026
From all of us at Mosu Seoul

[Sports Today reporter Song O-jeong ent@stoo.com]
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