Thermos Guardian 2 Pack Travel Tumbler - 20oz Stainless Steel Vacuum Insulated Mug with Lid, Leakproof & Sweatproof - Perfect for Coffee, Tea & Cold Drinks on the Go, Office, Gym or Outdoor Adventures

If you like your coffee in little sips at a time and always want it hot, this is the coffee mug, cup or thermos made. Need to be cleaned with a coffee cleaner or half of a dishwashing tablet a boiling water about every two weeks to keep the flavor good. But, all metal and glass coffee containers or makers should be cleaned in the manner to clean the oils from the coffee that will form on the sides of the item.