Dual-purpose thermos, also known as a thermal bottle, has the main function of maintaining the temperature of water and food inside the bottle. So what other functions does a dual-purpose thermos have? What are its advantages? Let’s find the answers in the article below!
1 What is a dual-purpose thermos?
Dual-purpose thermos
A dual-purpose thermos, also known as a thermal bottle, has the ability to keep cold water colder for longer and prevent hot water from cooling too quickly. Simply put, it is a bottle that can maintain the initial temperature of water for a long period of time.
A dual-purpose thermos can keep the temperature for about 6 – 72 hours depending on the type of bottle you use and the initial temperature of the water you put into the bottle. Thanks to this feature, the dual-purpose thermos is widely used to carry water when users need it outside or when traveling.
This type of bottle can not only hold water, but it can also hold liquid foods such as soup, porridge, yogurt, …
2 How does a dual-purpose thermos work?
Dual-purpose thermos with good heat retention
A dual-purpose thermos is designed based on the principle of heat transfer (heat will transfer from a higher temperature environment to a lower temperature environment), the water, after being put into the bottle, will gradually lose its temperature, preventing the water from getting cold or heating up too quickly.
The dual-purpose thermos body is usually designed with 3 layers: the outer shell, the vacuum insulation layer, and the inner layer made of stainless steel. Specifically:
- Outer shell: Usually made of stainless steel or plastic, it helps protect and enhance the durability of the bottle.
- Vacuum insulation layer: It is an air layer or a layer of insulation material that meets the standard, is safe. This layer has the effect of reducing the temperature difference between the inside and outside of the bottle, while effectively insulating, ensuring the initial temperature of the water is maintained for a longer period of time.
- Inner layer made of stainless steel: This layer is made of high-quality stainless steel that is rust and oxidation-resistant, ensuring good heat retention and safety for the user’s health. In addition, this layer also has the ability to prevent dirt and residue from sticking, helping to keep the water and food inside the bottle fresh and safe for health.
The bottle cap is designed with 2 layers and a silicone or rubber seal to ensure better sealing when closing the cap, limiting heat loss to the outside while maintaining the initial temperature of the water and food in the bottle for a long time.
3 Advantages of a dual-purpose thermos
Dual-purpose thermos easy to clean, safe for users’ health
- The multi-layer design helps the dual-purpose thermos retain heat better for water and food, the heat retention time can be up to 72 hours.
- The body of the bottle is made of high-quality stainless steel that is easy to clean and safe for the user’s health.
- The inner lining of the bottle is also made of high-quality stainless steel, which is easy to store water and food in the bottle and ensures safety for users.
- The bottle cap is designed with 2 layers to ensure that water and food do not leak out during transportation while improving heat retention efficiency.
- Various designs and colors come with other features such as residue filter, lock button on the bottle cap, hanging strap, etc. meet the needs and personal preferences of many customers.
- The bottle can not only hold water and food, but also be used to make noodles, porridge, yogurt, …
4 What type of dual-purpose thermos should you buy?
Buy a dual-purpose thermos from reputable brands
Currently, the thermos market has many reputable brands that are trusted by many people such as Tiger, Zojirushi, Elmich, or brands from Japan, Czech Republic, … with quality that has been tested and various models for you to choose from.
When buying this type of bottle, you should also pay attention to the information provided by the manufacturer to ensure your own health and safety during use. In addition, you should choose a dual-purpose thermos according to your needs for bottle capacity (350ml, 450ml, or 500ml) and heat retention time (6 hours, 12 hours, 24 hours, or more).
This article shares information about dual-purpose thermos, including its functions, advantages, disadvantages, and recommended thermo brands. We hope the article is helpful to you. Follow our upcoming articles for more interesting and useful information about household items!
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