Vacuum flask are one of the most versatile accessories for people who eat out of home. There are different kind of flasks but we usually differentiate between the specific for carrying liquids (cylindrical or bottled shaped) and the ones that are larger and rounder, better for carrying the solid food like casseroles, purées or soups. The solid vacuum flasks have a wide mouth that allows us to eat directly from the vacuum flasks. In this post, we will explain you the basic maintenance you should carry out in order to keep perfect your vacuum flask and to avoid deterioration.
The vacuum flask is a fragile accessory that needs special treatments if we want to preserve it properly over time.
1. Not suitable for dishwasher: The vacuum flasks are normally manufactured with different kinds of stainless steel. Inside is usually made of a higher quality stainless steel to avoid the oxidation of the side in touch with the food. Outside sometimes is made of less quality materials aiming that the product might be cheaper. It is better not to set out the vacuum flask to high temperatures and humidity in the dishwasher. In addition, if the vacuum flask has any small pore in the exterior stainless steel and we put it in touch with an already rusted in the dishwasher it can also rust.
2. Washing by hand: If we do not want to damage the stainless steel, it is suggested to wash it by hand using the soft part of the sponge. It is also advisable to use a soft soap and not to use any product with chlorine, whitener or solvents.
3. Drying process:This process is important to avoid the rust. Even if the material is stainless steel, if we do not dry the pieces after washing it, it might appear a rust dot through any small pore in the material. In order to extend the life cycle of your vacuum flask, it is suggested to wash it by hand carefully and to dry thoroughly every one of the pieces of the vacuum flask afterwards.
4. Storage: In addition to dry it thoroughly, a good storage trick is to insert some kitchen paper inside before storing it. We should crumple it a little, making a ball. You only need a pair of pieces of kitchen paper. It is also suggested not to close the lip, you can also store it next to the base of the vacuum flask. Concerning the order, it is not suitable for you to have the lip individually, place it above the base of the vacuum flask, but without closing it, with a kitchen paper between the base and the lip. The kitchen paper absorbs any remaining humidity and help us to avoid the bad odours too.