Thermos recalls 8.2M Stainless King and Sportsman bottles lacking a stopper pressure-relief valve; fermented food pressure ejected stoppers into users’ eyes.
Key Takeaways
Affected models: SK3000 (16oz) and SK3020 (24oz) made before July 2023, and all SK3010 (40oz) Sportsman bottles.
Root cause: stoppers missing a pressure relief function; perishable food ferments inside sealed containers, building pressure that ejects the stopper on opening.
27 injury reports total; 3 users suffered permanent vision loss from stopper ejection impact.
Sold March 2008 to July 2024 at Target, Walmart, Amazon for ~$30; 5.8M food jars and 2.3M beverage bottles affected.
Remedy: SK3000/SK3020 owners send photo of disposed stopper; SK3010 owners return full bottle via prepaid label for replacement. Allow 7-9 weeks.
Hacker News Comment Review
Commenters with engineering backgrounds noted multiple cheap, well-established solutions exist: interrupted cap threads (standard on PET bottles), small rubber-stoppered vent holes, or buckling seals – all cost cents and are widely deployed.
Discussion split on whether this is a QA failure (the valve was omitted, not unknown) vs. a cost-cutting decision; the non-recalled stopper design visibly costs more to manufacture.
Several commenters had personal near-miss stories with fermentation pressure in sealed containers, reinforcing that the failure mode is predictable and the missing relief valve a foreseeable hazard.
Notable Comments
@traceroute66: Argues the flaw is visually obvious from published photos and questions how QA missed it entirely.
@bilekas: Suggests Thermos switched to a cheaper lid design, with the non-recalled version appearing costlier to produce.
