The origin of thermos cups and daily life
Thermos, also known as hot water bottle, is a masterpiece of British scientist Duval, but it was named by German glassmaker Reinhold Berg. The design of the thermos bottle is clever, with a vacuum between the inner and outer walls. Without air, heat cannot be transferred in the vacuum, so the liquid in the bottle […]
JSPEED 2025 Wuzhen Tour
JSPEED 2025 Wuzhen Tour The June wind brushes over the white walls and black tiles, and the oars create ripples of summer in Jiangnan. On June 21-22, JSPEED temporarily bid farewell to the busy city and embarked on a team training journey immersed in the misty rain of the water town – the Wuzhen team […]
Identification method for thermos cups
1. Identification of insulation properties of the inner liner This is the main technical indicator of a thermos cup. After filling it with boiling water, tighten the bottle stopper or lid clockwise. After 2-3 minutes, touch the outer surface and lower part of the cup body with your hand. If you find obvious warmth on […]
Insulated Cup Science Popularization – Secrets in Numbers
In daily life, almost all the thermos cups we use are labeled with numbers such as 304, 316, 18/8, but most people do not know the meaning of these numbers. 1.304, 316 304 and 316 represent different stainless steel materials. The safety of the insulated cup depends on the material of the inner liner. What […]
Testing method for thermos cups
The testing methods for insulated cups mainly include insulation performance testing, sealing inspection, material verification, and impact resistance evaluation. The core methods are temperature change measurement and inverted water leakage testing. The following are specific steps and standards: 1. Thermal insulation performance test (1) Hot water insulation test Pour nearly 100 ℃ boiling water to […]
Can a thermos hold coffee?
A thermos can hold coffee, but attention should be paid to material selection and time control, as follows: 1. Material and Chemical Reaction Stainless steel insulated cup: It can hold coffee in the short term (2-4 hours), but it should be avoided to store for a long time. Tannic acid in coffee may corrode stainless […]
