If you were to put the gum in a container of water that could remain at a constant temperature about equal to that of a human mouth, it would not harden.

It like water turning to ice…the water hits the gum causing the molecules to slow down and making it where the elasticity of the gum becomes more rigid and therefore hard.

The reason saliva in the mouth does not do this is because the gum is heated by the warmth of the body temperature.

Try this as an experiment

Place gum in cold water…it gets hard

Place gum in Hot water…it will get soft again

I hope that answers your question

for years. Which is: Does your chewing gum lose it’s flavor

on the bedpost overnight?

The answer to your question is: water makes it harder

because the tempature of your body is 98.6 degrees, and

the water is not. Right. If your 13 year old wanted to know.

She would of asked it herself. Thirteen year olds are very

computer literate. <}:-})