Keith Titanium Ti3101 Zero-Plastic Vacuum Bottle – 18.6 fl oz

I always trust the quality and design of Keith titanium products. For this one I will only give 4 stars because of the design. I would expect it to have the same grey matte surface for the whole bottle, but actually only the top and bottom parts are made grey matte. The body has polished and more silver color, which makes it inconsistent look and more prone to fingerprints. The pictures in the apps didn’t show the color difference clearly.

Among thermos flasks this one is light (Ti) and dishwasher safe. Both pluses for me.

After learning the disastrous Microplastics presence in environment and even human body, I have been looking for a health-conscious water bottle for my daily use. After seeing this wonderful bottle made from the combination of Titanium and Silicone, I see a true hazard free ware, since both materials have no harm to human body, even with higher temperature. From what I see after a few weeks use, I get a lot of satisfaction from using this elegant bottle for water, drink and coffee. This vacuum bottle keeps warm drink well, and the inner silicone cap keeps the bottle tight. And it is very convenient to carry around as well. So far so good!

I bought this bottle with the expectation of using it for hiking/backpacking in winter. It is well-made product with a real capacity of ~600 mL as opposed to the advertised 550 mL. It is study with a well-fitting cap and rubber feet on the bottom. The bottle was tested with boiling water for 6 hours. After resting for 6 hours at 70º F, the water was hot to the touch and to drink. In comparison to other items of similar capacity, the Keith titanium insulated bottle appears to be a well-made produce with moderate insulation and a good capacity for use as a hot beverage carrier when hiking/backpacking outdoors.

My stainless steel (heavier) vacuum bottle keeps the iced drink cold for a longer period of time. Thermos has only been used once and hand cleaned. Picked it up today to a surprise rattling noise. Can’t see what is causing it.