Stainless steel thermal bottle - 750ML / Black - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - 750ML / Blue - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - 750ML / Red - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - 750ML / Silver - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses
Stainless steel thermal bottle - Vacuum Flasks & Thermoses

SK Fashion

Stainless steel thermal bottle

Regular price $ 100.00 USD Sale price $ 29.97 USD

🔥🔥 93% OF CUSTOMERS BUY 3 OR MORE 🔥🔥

Stainless steel thermal bottle

Stainless steel thermal bottle !!!

There’s nothing better than waking up on a camping trip and drinking your coffee watching the sunrise. That’s why our favorite travel mug is always something we bring along on trips. This thermos can hold just under a liter of beverage and keeps our delicious morning joe hot for 7-10 hours. Made of BPA-free plastic and stainless steel with light and compact design, it is perfect for camping, traveling or taking it to your office. Get yours now!

750ml Thermal Cup With Tea leaks Vacuum Flask Heat Water Tea Mug Thermos Coffee Mugs Insulated Stainless Steel Travel Cup

Just click the "Add To Cart" Button Below! There's very limited stock, and they will go soon!

Note: Due to High Demand Promotional Items May Take Up To 2-4 weeks for delivery. 

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We're thrilled to support Nanhi Pari Foundation is a Girl Child Right Organization which works for Education, Health & Nutrition for Girl Child.

 

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Stainless steel thermal bottle

How vacuum flasks work

A vacuum flask is a bit like a super-insulated jug. Most versions have an inner chamber and an outer plastic or metal case separated by two layers of glass with a vacuum in between. The glass is usually lined with a reflective metal layer. Unbreakable flasks do away with the glass. Instead, they have two layers of stainless steel with a vacuum and a reflecting layer in between them. There's also a tight, screw-down stopper on the top.

Thermos flasks were invented by Reinhold Berger and Albert Aschenbrenner, partners in the German glass-blowing company Burger and Aschenbrenner, who formed the Thermos company to market their idea. Here's one of the original US patents that Burger was granted in December 1907. The basic idea has changed little: vacuum flasks still use a double-walled fluid container, with a vacuum between the walls, to stop heat loss. Artwork courtesy of US Patent and Trademark Office.

These few, simple features prevent virtually all heat transfer by either conduction, convection, or radiation. The vacuum prevents conduction. The tight stopper prevents air from entering or leaving the flask, so convection isn't possible either. What about radiation? When infrared radiation tries to leave the hot liquid, the reflective lining of the inner chamber reflects it straight back in again. There's virtually no way heat can escape from a vacuum flask and a hot drink stored inside will stay steaming hot for several hours.

Flasks also work for cold drinks. If heat can't escape from a vacuum flask, it follows that heat can't penetrate into a flask from outside either. The sealed stopper stops heat getting in by convection; the vacuum stops conduction, and the metal lining between the outer case and the inner chamber stops heat radiating in either.

Whether you like your coffee piping hot or icy cold, vacuum flasks are an absolutely brilliant way to keep your drinks just the way you want. Some heat still escapes (or gets in) eventually, mostly through the stopper, but flasks like this are still a vast improvement on virtually every other kind of insulated drinks container.

Inside a vacuum flask

Diagram showing how the parts of a vacuum flask keep it either hot or cold

Let's take a quick look at what's going on inside a flask:

Diagram showing how the parts of a vacuum flask keep it either hot or cold

1.Screw-on stopper.
2.Outer plastic or stainless steel case.
3.Outer layer of glass coated with reflective material (or stainless steel in unbreakable flasks).
4.Vacuum.
5.Inner layer of glass (or stainless steel in unbreakable flasks).
6.One or more supports keep inner vacuum container in place.
7.Additional insulation reduces heat losses and cushions flask against impacts.


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