In the 19th century in England, James Dewar invented the Dewar tank for the storage of diluted gases.
After some time his pupil Reinhold Burger found to commercialize his invention.
Soon, his firm became known worldwide.
The company began producing nothing but a thermos.
Thermos modern and does not differ from his invention. After all, a thermos is a glass or metal bottle and nbsp- housing.
If you need a thermos for visitesde countries lepréférable to choose a metal container because it is more durable. If it is provided for use in the city, you should choose a thermos with a glass bulb, because it is more hygienic. At the same time, they retain the same temperature.
Experts believe that in thermosesplastiqueaussi keep the temperature as metal. Thermos & Bons nbsp-keeps the temperature around 50 degrees, even after 24 hours. These criteria are met Pitchers isothermal companies, Hangzhou EXCO, Penguin, & quot Mimi-Mimi & quot-& nbsp- etc.
When buying a thermos make sure the cap is screwed tightly. Basically, this conservation depends on the desired temperature.
In addition, the storage temperature depends on the volume. More moving, the more heat is retained.
When buying a thermos is required pourl’ouvrir. If you feel an unpleasant odor, so the thermos made of inferior materials. If you decide to choose a thermos, this quality because of the price, or the design-not to because it allocates noxious liquid substances.
If you buy a glass bottle, secouezelle. The bulb should not drag, otherwise it’s just sooner or later certain to be broken. bottle certainly stronger metal, but is under heavy pressure can get microcracks, the resulting vacuum will disappear and lose insulation and waterproofing.
According to experts-various welding and infusions should be prepared in a thermal glass.
You can check the quality thermos. It is necessary to pour boiling water and let stand for 10 minutes. If the body is hot, then the defective thermos.
Modern thermoses like cycling water bottles are not only for fluids, according to Waterbottlesshop, but also for food and & nbsp- issued in the form of kastryulek.
- More moving is better preserved temperature.
- Reliable and durable than glass bottle, but in turn, metal, glass hygiene.
- Pouring body boiling water for 10 minutes must not be heated.