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Wine Switch Scandal: What Happened at Chef Ahn Sung-jae’s Mosu Restaurant?

Daniel Kim Views  

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[iNews24 Reporter Kim Hyo-jin] After Mosu Seoul — the fine-dining restaurant run by Chef Ahn Seong-jae — posted an apology over the so-called “wine swap” controversy, the customer who says they were affected shared additional comments.

Chef Ahn Seong-jae participated in a discussion at the “Next on Netflix 2026 Korea” event at the Conrad Seoul hotel on the morning of the 21st. [Photo=Netflix]

On April 24, customer A wrote on an online community that they had seen the apology on Mosu’s official social channels. As in a previous post, A says the account below is based on call recordings and message logs.

A said Mosu did not apologize on the day of the meal (April 18). After the restaurant’s two-day break, A contacted Mosu on April 21 to request an explanation of what happened.

A says that after speaking with the sommelier, Mosu issued an apology. When staff asked, “Are you contacting us because you expect something?” A replied that he was not seeking compensation.

He added that he posted on two online forums because he didn’t want similar incidents to happen at Mosu or other restaurants. Mosu later told him, “Everything is true and there’s no excuse,” and apologized.

A declined an invitation to dine again, saying he wasn’t after compensation — returning would make everyone, including his guests and the staff, feel awkward.

He also said he didn’t raise the issue at the table because he was dining with senior colleagues and didn’t want to ruin the pleasant atmosphere.

Earlier, A had posted that while dining with acquaintances at Mosu Seoul, they ordered a 2000 vintage wine, but the sommelier served a 2005 vintage that cost roughly 100,000 KRW (approximately 75 USD) less.

A says that when he asked to see the bottle, the sommelier said, “Just a moment,” went into the staff area, then returned and placed a bottle on the table. Only after A asked for confirmation did the sommelier admit that the 2000 vintage bottle had been taken down to the first floor.

A claims the sommelier tried to brush off the mistake with a belated apology, even though they knew the wrong wine had been served.

Mosu officially apologized for the recent “wine swap” controversy. The image shows their apology posted on Instagram. [Photo=Mosu Instagram]

As the controversy escalated, Mosu issued an apology on the 23rd: “We sincerely apologize for causing confusion by failing to provide accurate guidance during our wine-pairing service, and for not offering sufficient explanation during our follow-up responses. We deeply regret the disappointment this caused.”

Daniel Kim
content@tenbizt.com

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