How to get the sour milk smell out of a travel mug?

How to get the sour milk smell out of a travel mug?

HOW TO GET THE SOUR MILK SMELL OUT OF A TRAVEL MUG?

I left some milk in a travel mug and forgot about it and now it smells really bad. I’ve cleaned it thoroughly with soap and hot water but it still smells really bad. What can I do to remove the smell of old milk?

Advices:

No matter your travel mug is plastic travel mug or stainless steel travel mug, when you clean it with soap and hot water completely, the only way you need to do is remove the cap and place it on the desk to let the smell go for couple days, the smell will be out of travel mug completely, except for your didn’t clean it completely, try it with soft brush & soap & warm water to clean it again.

Double Wall Insulated Silver Stainless Steel Coffee Tea Mug with Lid- 10 Ounce