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Dad's Warning: Hidden Mold in Yeti Lids
9 Dec, 2025
Summary
- Black mold discovered inside Yeti water bottle mouthpieces.
- Parents are finding mold by disassembling bottle lids.
- Concerns raised over potential health risks for children.

A concerning discovery by a Canadian father has parents across the United States on high alert regarding popular reusable water bottles. Jason Sullivan found black mold growing within the mouthpiece of his daughter's Yeti bottle, a detail hidden unless the lid is disassembled. He shared his findings, warning other parents to regularly inspect their children's bottles, as he felt they couldn't be cleaned effectively.
Following Sullivan's viral warning, numerous parents have experimented with their own bottles, confirming the presence of mold. Many expressed frustration, labeling the product's design a significant oversight that prevents proper cleaning and potentially exposes children to health risks. The company's recommended cleaning method involves boiling disassembled parts, but disassembling the lid can reportedly lead to leaks.
Mold thrives in moist, dark environments, posing risks like worsened asthma, allergic reactions, and respiratory issues if inhaled or ingested. While the company has not yet commented, parents are exploring various cleaning methods, including dishwashing and using baking soda and vinegar pastes, though concerns remain about reaching all hidden crevices.




