Is it better to shake the stainless steel ball or plastic in the cup?

Would you like to know whether the stainless steel ball or the plastic ball should be shaken? The answer is stainless steel balls.

If you use stainless steel, you don't have to worry about damage or softening, but if you use plastic balls, these two problems will appear.

Plastic balls will deform at high temperature, which is easy to breed bacteria and difficult to clean.

The stainless steel ball contains natural metal CU, which can reduce the growth of bacteria and is easy to clean.