How to Clean a Thermos

The husband has always taken a thermos of coffee to work. I wash it everyday but it still gets that buildup of black stuff on the inside. Every once in a while I have to attack it! This will  make it look brand new on the inside, I promise! The process is like a science experiment so gather up the kiddos and let them watch. You will need :

1 small bottle of hydrogen peroxide
1 cup of baking soda
boiling water

Rinse your thermos out, pour in the cup of baking soda, pour in the peroxide, then fill the rest of the thermos up with boiling water. Now watch the crazy cleaning action!

It will look like its boiling in there! It will fiz and pop and eventually it will bubble out the remains of the black film that was stuck on the inside. Its really gross!! If if stops bubbling you can pour a little more boiling water in and it will start it up again. It should take 15 minutes or so. Depends on how built up it is.

                                            This is the remains of the black film!! Yuck!!!! Now just wash it out again and repeat the process if there is still some pieces hanging on in there. I should have taken before and after pics!