First Use: 

  • Use warm/ boiling water with dish washing liquid, and leave solution for 30 minutes. 
  • For Sip 'n Stash, you can boil the silicone without the plastic parts for 10 minutes.

After using with drinks:

  • Best to rinse the product after you used it with coffee or other drinks with strong smell.
  • In case you weren't able to wash the container right away, you may use lemon water mixture to remove the smell. You can leave overnight for thorough cleaning.