The recall affects 2.6 million Switchback and Trigger Action stainless steel travel mugs sold in the U.S. The company said the mugs’ lid threads can shrink when exposed to heat, causing the lid to detach in use and pose a burn hazard.

The recall includes all Stanley Switchback and Trigger Action stainless steel travel mugs sold in the U.S., the CPSC notice said. The threads on the recalled mugs' lids can shrink when exposed to heat and torque, which can cause the lid to detach during use.

Stanley is recalling approximately 2.6 million of its switchback and trigger action stainless steel travel mugs sold in the U.S. because of a potential burn hazard. The company said that the mug’s lid threads