How does a double-layer coffee cup achieve "insulation without burning the hands"? Actual measurement comparison

2025-11-14 15:59:52
How does a double-layer coffee cup achieve

Our parents and teachers often warn us not to touch hot things like a stove or a cup of coffee. It can sting and burn our hands. But have you ever wondered why some coffee cups keep our hands safe, while others don’t? Letsee what Tianyun’s double wall coffee cup can do!

Clear Ice Ball Maker Keeps Hands Clean and Dry

You may have noticed some coffee cups with two layers and others with only one. The two-layer glass coffee cup are constructed to insulate your hands from the heat of the coffee. It's because there is a layer of air between the two sides of the cup. This air acts as a barrier, and prevents heat from getting to your hands. That's how a double-layer coffee cup prevents your hand from burning while you hold it.  

Assessing the Effectiveness of Double-Layer Cups

We decided to test the extent that a double-layer coffee cup can keep your hands safe. We also filled up an unassuming single-layer cup and a double-layer Tianyun cup with hot coffee. We studied how quickly the heat spread to the outer surface of the clear glass coffee cups. The results were clear: the double-layer cup stayed cooler for longer; the single-layer cup became too hot, too fast. This demonstrates that the double-layer design does a significantly better job keeping your hands cool from the coffee’s temperature.

Here’s The Science You Should Know About The Resistance Of Heat

The way heat moves is why a double-layer coffee cup — not a single-layer cup — works better. Hot coffee wants to become like the cooler outside of the cup when it is poured in. And in a single-layer cup, nothing is preventing that heat from reaching your hands. But with a double glazed coffee cups the air between the two walls of the cup creates a buffer preventing the warmth from dissipating. Here's how the double wall design of a Tianyun cup can help ensure your hands remain unscathed.

How to Keep Your Hands Safe from Hot Drinks

Hot drinks — for example, coffee or tea — can be very pleasant, particularly on a cold day. But don’t forget — these are also hot enough to cause burns if you’re not careful. That's the reason why he gets a double layer cup from Tianyun. The double-wall design prevents the heat of the beverage from being in contact with your hand, so you are comfortable while sipping your drink.

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