Solution for the lid of the thermos cup not opening
The inability to open the lid of a thermos cup may be caused by various reasons. Here are some common solutions: 1. Utilize the principle of thermal expansion and contraction (1) Hot water soaking method: Turn the thermos upside down, soak the lid part in hot water for a few minutes, let the lid expand […]
Principle and technology of thermos cups capable of boiling water
Ordinary thermos cups can only keep warm, while thermos cups that can boil water (also known as “self heating thermos cups”) can quickly boil water through chemical reactions or electrical heating without a power source. This type of product is suitable for outdoor travel, командировки, or emergency use. 1. Heating principle of a thermos […]
