Ins and Outs Of A Vacuum Flask
A vacuum flask is a storage vessel used to maintain the temperature of liquid refreshments for a longer duration. These flasks, also called 'thermos', require a vacuum to prevent heat transfer from the inner liquid to the outside environment. They are usually manufactured using metal, glass, and plastic as their main resources, but the material is often surrounded by another insulating material for extra rigidity. What must one consider while purchasing a vacuum flask? Before you buy a flask, keep in mind the exact usage of the product. Is it required for storing hot or cold substances? Will it be used daily or for a short trip to the beach side? Material Type: A high-quality flask would have good insulating material. Plastic flasks are not recommended, even though they are cost-effective as they are most likely to break easily. Stainless steel flasks are highly durable and resistant to heat. Heat Retention: The most important...