Choosing the right thermos tumbler is more complicated than it looks. When you know the importance of owning insulated stainless steel tumblers and decide to buy , you need to know that not all of them are the same. You need to choose between simple single wall, double wall insulation or vacuum insulation. Learn some of the more nuanced differences between them, as well as their pros and cons, to help you decide which stainless steel tumbler is really right for you.
1. Single Wall Insulation Stainless Steel Tumblers
Single wall, as the name suggests, is a tumbler with only a single layer of stainless steel. Have you ever encountered such a situation: when you use your stainless steel tumblers to fill a cold drink, your tumbler wall will “sweat”; and when filling a hot drink, you often can’t hold it because the tumbler wall is too hot. The conclusion, then, is that you may have purchased a single wall stainless steel tumbler. As a good conductor of heat, stainless steel has excellent thermal conductivity. This means that heat is conducted directly and rapidly through the stainless steel. Therefore, this greatly weakens the thermal insulation performance of the single wall insulated stainless steel tumblers.
So, why choose a single wall stainless steel vacuum flask? In fact, the single wall insulated stainless steel mug also has its advantages. First of all, from the perspective of environmental protection, the reusability of stainless steel materials is much greater than that of plastic products. Thus reducing the pressure of plastic products on the environment. Secondly, in terms of heat preservation and cold preservation effect, it is still better than ordinary ceramic cups, glass cups and plastic bottles, even if it only has a single wall. In addition, the single wall stainless steel tumbler is lighter in weight and easy to carry. Suitable for going out for hiking, cycling, outings. Finally, in terms of price, single wall stainless steel coffee tumbler is more affordable. As company employee benefits, supermarket promotions or promotional gifts, it is a good choice.
2. Double Wall Insulation Stainless Steel Tumblers
2.1 Double wall stainless steel tumblers
When you are not satisfied with the effect of single wall insulation, you can try double wall stainless steel tumblers. On the basis of the single wall, add a layer of stainless steel, and isolate the double wall with air. This design means that heat must first be conducted through one layer of stainless steel. Then through radiation and convection through the air. Finally conduction through another layer of stainless steel. This will undoubtedly hinder the conduction of heat to a certain extent, and play a better heat preservation and cold preservation effect.
Therefore, the advantages of using double wall stainless steel mugs are obvious. While eliminating the shortcomings of single wall insulated tumblers, the use range is wider. In the office, on the way to work, or on a long road trip, enjoy hot and iced coffee anytime, anywhere. At the same time, it is also a good choice for children to bring to school for use.
2.2 Traditional double wall insulated tumblers
Some traditional double wall insulated tumblers use different materials for the inner and outer layers. That is, the inner layer of stainless steel, the outer layer of plastic, glass or other composite materials. For example, our common outer plastic inner steel. It only keeps the liquid inside cold by adding materials in the form of additional walls. But it starts to lose its potency in a hot environment or after prolonged use. At the same time, the inner and outer materials are different. So that heat may seep from the material, or radiate from the outer material. Heat is lost or gained using the air between the tumbler walls as well as the tumbler walls themselves. Therefore, whether cold or heat preservation, it is far inferior to the double wall stainless steel tumbler we mentioned above. This greatly limits the scope of its use.
3. Vacuum Insulation Stainless Steel Tumblers
The vacuum insulated stainless steel tumblers are to vacuumize the air between the stainless steel double walls. That is, a space without air molecules floating. Of course, there can’t be a 100% vacuum, just remove as much air as possible to make the convection ineffective. In other words, the vacuum acts like a barrier, reflecting the heat of the hot liquid back to itself; while preventing any heat from being transferred to the outer walls and ultimately to the surrounding air. The same is true for cold storage. Keeping your beverages cool by preventing heat from the surrounding environment from exceeding the vacuum threshold and reaching your cold liquid. Therefore, vacuum insulation is arguably the most effective form of insulation for stainless steel tumblers. Keep your beverages cold for up to 24 hours and warm for up to 12 hours.
Regarding whether the material of the double wall vacuum flask must be made of stainless steel. If you pursue the ultimate heat preservation and cold preservation effect, it is necessary to use 304 stainless steel. Plastics and other materials are difficult to vacuum seal during the production process. Holes will appear, breaking the vacuum barrier. In contrast, 304 stainless steel is durable and corrosion-resistant. Because of the higher requirements on the required materials and production methods. Therefore, the price of vacuum insulation stainless steel tumblers is usually more expensive.
Understanding the differences between single wall, double wall and vacuum insulated tumblers and their pros and cons can help you make a more informed buying decision. I hope that through this article, you already know how to choose the insulated stainless steel tumblers that really suits your needs, not just according to the color and pattern.