... ,bpa free material 4,various colors availab our drinking bottle lid: How to clean a cap? 1) Remove ... the brush out and replace the cap. Shake the bottle again vigorously, and then pour the contents out. ... a soft cloth. Wipe down the outside of the bottle with vinegar; then, rinse under water. 4) Wash ... , we needed the strongest, lightest stainless steel water bottle we could get. So did all our friends. ...