Introduction
In daily life, during commuting, and outdoor activities, people are accustomed to carrying stainless steel tumblers to replenish water at any time. However, when making a choice, you may find that some tumblers can keep the temperature for a longer time. So, why is that? Today, we will discuss the details to help you find a product that suits you.
Main Influencing Factors
In fact, the heat preservation effect of stainless steel tumblers is related to multiple factors, such as:
1. Stainless Steel Materials
In the current market, the common material for stainless steel tumblers is 304. Among them, 18/8 304 stainless steel is a food-grade standard material with higher cost-effectiveness. It is resistant to corrosion and high temperatures, especially for holding carbonated beverages.
2. Vacuum Structure
The heat preservation ability of most cups comes from their vacuum layer design. This means using high-vacuum technology to evacuate the air between the two layers of stainless steel to a vacuum state, thus isolating heat conduction. In contrast, single-layer stainless steel cups have almost no heat preservation effect. Therefore, we recommend that you choose double wall stainless steel tumblers with a high-vacuum design.
3. Sealing of the Cup Lid
The sealing performance of the cup lid can also affect the heat preservation effect of the tumbler. When the silicone sealing ring fits tightly to the cup mouth, it can reduce the speed of heat loss through the gaps. Generally speaking, the sealing performance and heat preservation ability of screw-top tumblers are better than those of press-fit tumblers. However, during hasty commuting and outdoor adventure activities, press-fit cup lids are more convenient to use.
4. Inner Wall Coating
Sometimes, people also add a copper plating layer/mirror reflection coating to the inner wall of the stainless steel tumbler. This is to reduce heat loss by utilizing the principle of thermal radiation reflection. Through this kind of design, the heat preservation time of the cup can be increased by 10%-15%.
5. Shape and Capacity of the Tumbler
In addition, the shape and capacity of the cup body can also affect the heat preservation effect. For example, the design of a narrow-mouth stainless steel reduces the surface area for heat loss compared to a stainless steel wide mouth tumbler. And due to greater thermal inertia, large-capacity cups usually have a longer heat preservation time than small-capacity cups.
6. Temp of the Beverage / the Environment
The higher the initial temperature of your beverage, the longer the heat preservation time. At the same time, viscous liquids such as hot coffee and pumpkin puree cool down slightly slower than plain water due to their higher density. In addition, in a cold outdoor environment, the tumbler is more likely to dissipate heat. We can use a cup sleeve or wrap the cup body with a towel to slow down the heat loss.
Conclusion
The heat preservation effect of stainless steel tumblers is determined by multiple factors, including material selection, structure, and the usage environment, etc. We recommend that you give priority to combinations such as 18/8 304 stainless steel material, a high-vacuum design, and a high-quality sealed cup lid.
As a professional manufacturer of stainless steel drinkware, Ansheng provides you with a wide variety of tumblers, water bottles, mugs, and other products with efficient heat preservation. You will also get customized finishes, sizes, and logo printing designs. Please contact us for more information.