The lid "can eject and hot contents can spill out, posing injury and burn hazards," Yeti said in consumer safety report last week, announcing the recall of around 250,000 of its popular ramblers.
In a filing from the US Consumer Product Safety Commission on November 4, the company revealed that there had been two reports on the slider ejecting after being "sealed with hot liquid."
Yeti told customers that they "should stop using the product immediately" on its website.
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"The lid's MagSlider and mug contents can be expelled if the mug is filled with hot liquid, sealed with the lid, and agitated or inverted, which can pose an injury hazard," Yeti wrote.
There have not been any reported injuries.
Since the Rambler 20 oz Travel Mugs were recalled last week, the outdoor manufacturing company is issuing a full refund to anyone who purchased one.
The company told CNN that the product was available for purchase on its website from October 1 through October 9, and that just 15,000 mugs were ultimately sold.
Yeti isn't asking for the whole mug -- the return form only asks customers to send the lid back.
An official Yeti spokesperson provided the following statement:
"We are issuing a voluntary product recall of the Rambler 20 oz Travel Mug with Stronghold Lid after learning the lid's MagSlider and mug contents can be expelled if the mug is filled with hot liquid, sealed with the lid, and shaken, which poses an injury hazard.
The product was available for purchase through yeti.com from October 1, 2020 through October 9, 2020 and about 15,000 units were sold. No injuries have been reported.
We ask that all customers currently in possession of the 20 oz. Travel Mug with Stronghold Lid immediately cease use of the product and follow the recall instructions for a full refund. More information can be found here - https://www.cpsc.gov/Recalls/2021/YETI-Recalls-Rambler-Travel-Mugs-with-Stronghold-Lid-Due-to-Injury-and-Burn-Hazards."
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