Why do some hot water bottles come in hot water and the lid can be easily bounced up? Some hot water bottles don't do that. How can they be solved?
If you fill up the hot water, you won't be able toMainly gas expansion and contraction
This is mainly because the hot bottle contains a certain amount of air. When you cover the lid, it is a little faster, the air is compressed and a certain amount of pressure is put on, so the bottle cap is bounced. You can slow the cover or sideways cover won't appear.
