What the Keith Ti3150 Is

Keith specializes in titanium outdoor gear, and the Ti3150 is their vacuum-insulated everyday mug: an inner and outer wall of titanium with a vacuum between them. Titanium is extremely light, does not rust, does not impart a metallic taste the way some steels can, and needs no coating or liner of any kind.

What Touches Your Coffee

Titanium. The inner vessel is bare titanium with nothing layered over it, so hot coffee rests against one of the most chemically inert metals in common use. The lid is titanium as well; like most sealed lids it relies on a gasket, which is the one component we flag, and gaskets in this class of gear are typically silicone rather than petroleum plastic.

The Plastic-Free Verdict: As Clean as Drinkware Gets

Marketed as plastic free and built like it: titanium walls, titanium lid, no liner, no coating. For daily hot-drink contact, this is the top tier of materials. The price reflects titanium fabrication; the mug will plausibly outlast every other item on your coffee shelf. For a bigger bottle in the same material, see the iBasingo titanium bottle.

Who It’s For

• Daily commuters who drink from the same mug for hours
• Anyone avoiding coated or lined drinkware entirely
• Backpackers counting grams

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