It keeps water cold
People are maniacs for cold water, that’s one of the big things a Stainless Steel Water Bottle can offer—which is a double-walled, insulated bottle—changed from the days of plastic bottle.
How it works
A double-walled thermos works by eliminating solid conduction between the inner wall and the outer wall.
A vacuum between those walls stops gas convection from occurring, and so it helps keep cold drinks cold and hot drinks hot.
A copper lining that improves hot/cold retention around 10~15% performance.
Make it last
Dish-washing is the scourge of double-walled insulation. The heat can damage the vacuum, so it’s best to hand-washing this water bottle. This is where simplicity reigns supreme, since bottles with fewer moving parts become easier to scrub.
