How to use insulated cups correctly?

Buying a safe and reassuring insulated cup is the first step, and how to use it correctly is equally important.

Before using a new insulated cup, it is best to rinse it with boiling water several times and disinfect it with high temperature.

In addition, the water content should not be too full to prevent children from scalding due to 

the overflow of boiling water when unscrewing the cup cover.

Another thing is that not everything can be filled in a thermos cup, and if inappropriate things

 are filled in the thermos cup, there may be safety hazards.

Carbonated beverages should not be placed in insulated cups, as they may react chemically with

 the inner container of the insulated cup, corrode the inner container, and produce harmful substances that can affect children's health.

Dairy products: Milk, milkshakes, or dairy products are prone to spoilage. If stored in a thermos for

 too long, it may lead to bacterial growth or odor generation.

Juice: Juices such as orange juice and apple juice can spoil due to the presence of fructose, and are

 also not suitable for long-term storage in insulated cups.

That is to say, the only thing that can be filled in a thermos that is most suitable for 

holding is water, and it is best not to hold anything else.