Why New stainless steel water bottle smell?
Bottle cap and seal ring smell:
Most of caps are made with plastic for stainless steel water bottle, and the seal ring on the cap is made with silicone; if the raw material of plastic or silicone seal is low quality, it could be smell even the bottle is new just buy from a shop.
The bottle plastic cap and silicone seal ring has slight smell, but will disappear after washing it, that is acceptable, because any material has its slight smell, even stainless steel, wood, paper, or fabric.
So it would be un-healthy to drink with a New stainless steel bottle smell strongly after washing it with water, it could be made by poor quality raw material.
Why my stainless steel thermos bottle smell
Did not washing bottle appropriately:
Except for filling with pure water, you should wash the stainless steel bottle completely after fill with any other liquid, such as beer, coffee, juice, or milk etc.
Because after you drink the liquid, microorganisms (bacteria) will multiply in it, there will be some microorganisms at the beginning, for couple days, it will reproduce from generation to generation, and their metabolites will have a variety of flavors. Then you smell it.
How to clean stainless steel vacuum flask to get the smell out
Step 1. Washing bottle with salt:
If you want the stainless steel thermos bottle to be cleaned and sterilized, you only need 3 steps. The first step is to pour some salt into the thermos bottle. Then add hot water to the thermos, cover the lid, and shake for 3 minutes. Why need to wash the stainless steel bottle with salt water before cleaning the it? In fact, salt can sterilize and decontaminate, also soften the tea dirt and other stubborn stains in the inner pot of the thermos. After the shaking time of the thermos cup is up, pour out the dirt inside.
Step 2: Washing bottle with Soda
Put soda in the thermos bottle, pour in water, cover the lid and shake for 3 minutes. During this shaking process, the soda can rub against the inner wall of the vacuum flask to remove some stains, it can remove tea dirt and stains in the thermos cup. Similarly, after the shaking time of the thermos cup is up, pour out the dirt inside and rinse it with clean water. In this way, the cleaned thermos cup is clean and sterilized, which solves smell issue of stainless steel bottle.
Step 3: Clean the bottle mouth with toothpaste
After cleaning the inner pot of the thermos, let’s clean the mouth of the thermos bottle. Because the mouth of the cup is often in direct contact with our mouth, if it is not cleaned, it is easy to bring bacteria into the body and harm our health. Therefore, when cleaning the mouth of the vacuum flask, apply some toothpaste to the mouth of the vacuum flask. Brush again with a toothbrush. Because the toothpaste contains abrasives that can remove stains on the mouth of the vacuum flask. After cleaning the mouth of the cup, rinse it again with water. In this way, the cleaned thermos cup is as clean as new and has no bacteria, which solves the troubles of smell completely for the stainless steel thermos bottle.