Thermos flasks have revolutionized lunch. The thermos, which allowed food or drinks to be kept hot or cold over a long time, meant that people could have a hot meal, or a cold drink, at any time they needed it without having to rely on refrigerators, kitchens or microwaves.
The thermos flasks basically made people’s lives better. It saves money, and stops us from relying on cafeterias or processed food for meals.
How do they work?
Originally invented in 1892, they consisted of a flask within another flask, joined at the neck, and with the air between the two evacuated to create a vacuum that regulated the temperature of liquids. They were originally intended to stabilize the temperature of elements in the chemistry lab, but their commercial use was obvious. Soon, they were being marketed as a tool to help people keep their foods at the right temperature. This was a great boon in the days before microwaves—or 24-hour coffee shops. They are still just as useful today for those who can’t access those things, or for those who just choose to avoid them.
Glass or glass-lined?
Although useful, the original thermos product was fragile. Imagine how your whole day could be spoiled when your anticipated thermos flasks full of tea became a thermos full of tea and broken glass. A glass lined flask is a better choice, because it retains the benefits of the glass properties, but, with the lining inside, it has none of the drawbacks. Glass-lined flasks don’t change the taste of the drink, and best of all, the casing around the glass is shatterproof, so special care does not need to be taken with it. Just throw it into your bag and don’t worry about it. Another benefit? Leak-proof. So, you actually can just throw it into a bag and not worry. It won’t leave coffee table rings either.
Keeping liquids hot or cold for a long time is the big benefit, and has in fact, changed the way people drink. It is easy to take a healthy meal with you to work, to school, or to an event. Thermoses can carry soup, drinks, or even whole foods, and they can keep them at a safe temperature. There is no need to worry about bacteria, or about toxic chemicals leaching into the drinks from BPA plastics.
Something for everyone
Vacuum flasks now come in a variety of styles and purposes. Do you want one to match your outfit? Something that is as trendy and stylish as spring time in Paris? They have one. Do you need a travel mug? If you are having guests for lunch, maybe you need a carafe for lattes. Whatever you want, there is a thermos flask for you.
No matter what the weather, having something hot at lunch can really brighten up your mood, make you feel comforted, and help prepare you for the afternoon. Also, bringing our own food saves a lot of money—with the added benefit of knowing exactly what we are eating all the time. Thermos flasks really have improved life for many people. Allowing us to eat a hot meal, or have a hot or cold drink, has really made more than just our lunches better.