Hot for 20 Hours? The Science Behind Medly’s Vacuum Insulation Technology

We often say that the Medly Insulated Flask keeps drinks Cold for 24 Hours and Hot for 20 Hours. But how is that actually possible?

Is it magic? No. It’s precision engineering.

If you’ve ever wondered why your Medly bottle performs so much better than a standard steel or plastic bottle, here is the science broken down simply.

The Enemy: Heat Transfer

To understand insulation, you have to understand nature. Temperature always wants to equalize. Heat wants to escape to the cold, and cold wants to absorb heat.

There are three ways this happens: Conduction, Convection, and Radiation. Medly stops all three.

The Medly Defense System

1. Double-Wall Construction (Stopping Conduction)

Imagine a bottle inside a bottle. A Medly flask has an inner steel wall and an outer steel wall. In a normal bottle, heat travels through the wall to your hand. But in a Medly bottle, these two walls never touch except at the very top neck.

2. The Vacuum Void (Stopping Convection)

Here is the secret sauce. Between those two walls, we remove all the air to create a Vacuum. Heat needs air molecules to travel. Without air, heat literally has nowhere to go.

It’s like a moat around a castle. The heat from your coffee can’t cross the vacuum to get out, and the heat from the summer sun can’t cross the vacuum to get in.

3. Copper Coating Technology (Stopping Radiation)

This is the premium touch. Inside the vacuum space, the inner wall is coated with a thin layer of copper. Copper reflects heat energy (radiation) back into the liquid, acting like a mirror for temperature.

The Result: Thermal Lockdown

Because of this triple-layer protection, the liquid inside your Medly flask exists in its own isolated climate.

• Ice doesn’t melt because outside heat can’t get in.
• Tea doesn’t cool down because inside heat can’t get out.

It’s not just a bottle; it’s a thermal fortress for your beverage.

Conclusion: Engineering You Can Taste

Next time you take a sip of steaming hot coffee 10 hours after you brewed it, remember: it’s not an accident. It’s the result of superior Medly technology.

Experience the science of perfect temperature.