Since opening two decades ago, Noma — the Copenhagen restaurant currently serving grilled reindeer heart on a bed of fresh pine, and saffron ice cream in a beeswax bowl — has transformed fine dining. A new global class of gastro tourists schedules first-class flights and entire vacations around the privilege of paying at least $500 per person for its multicourse tasting menu.

Noma has repeatedly topped lists of the world’s best restaurants, and its creator, René Redzepi, has been hailed as his era’s most brilliant and influential chef.

Nevertheless, Mr. Redzepi told The New York Times, the restaurant will close for regular service at the end of 2024.

Noma will become a full-time food laboratory, developing new dishes and products for its e-commerce operation, Noma Projects, and the dining rooms will be open only for periodic pop-ups. His role will become something closer to chief creative officer than chef.

This move is likely to send shock waves through the culinary world. To put it in soccer terms: Imagine that Manchester United decided to close Old Trafford stadium to fans, though the team would continue to play.

The decision comes as Noma and many other elite restaurants are facing scrutiny of their treatment of the workers, many of them paid poorly or not at all, who produce and serve these exquisite dishes. The style of fine dining that Noma helped create and promote around the globe — wildly innovative, labor-intensive and vastly expensive — may be undergoing a sustainability crisis.