After a running training, the best way to clean the stainless steel gym bottle is to wash it by hand, with warm water and some detergent, cleaning more on the bottom of the bottle.
Some gym bottle is narrow, the opening is relatively narrow too. You need to use some kinds of bottle brush to clean it, which can clean more effectively than rinse directly with water.
During running and drinking sports drinks, drinks usually stick to the lid of the bottle. You should remember this during cleaning.
It is no doubt an easy thing to clean your stainless steel gym bottle directly by the dishwasher, but the water temperature in the dishwasher is often close to boiling point, and the stainless steel gym bottle usually has a coating that greatly shortens its service life in a constantly high temperature.
It is best to clean the stainless steel sports kettle like other kinds of cups we commonly use every time after you use it.