From the earliest vacuum thermos flask patent to the world's first stainless steel vacuum thermos flask, in the course of more than 100 years of development, THERMOS has been at the forefront of the industry, and its brand name "THERMOS" has also been written into the English dictionary as a synonym for thermos flasks. Its thermal insulation products have always been excellent, and in the field of thermal insulation lunch boxes, many products have entered the top 10 of Nichia's sales rankings, and the stewed jar with Zojirushi was selected as the best thermal lunch box by The Wire Cutter.
 
THERMOS mainly launched three types of products for insulated lunch boxes: multi-layer insulated buckets, stewed cans and insulated lunch boxes. The insulated bento box is designed to suit the Japanese diet, and is generally equipped with a vacuum insulated bucket for rice, 2-3 square PP bento boxes that do not have an insulated function, and a carrying pouch that can fit into these lunch boxes, which is more common in the Japanese market, but thermos insulated bento boxes are not sold in China.
 
One of the reasons why THERMOS's stew pots are extremely popular in both China and Japan is that they have a card on the top of the plug, and the included folding stainless steel spoon can be placed here, so you don't need to bring extra utensils with you when you go out. The simmering tank mainly relies on the excellent thermal insulation performance of the product, so that the food can be kept in hot water at high temperature for a long time, and the pressure in the tank is greater after sealing, which can simmer the food, but the taste is slightly worse. Moreover, the simmering pot is more suitable for simmering rice porridge, and the simmering pot with better heat preservation performance can also stew beans, and the soaking effect is better in advance.
 
The stewed jar has two shapes, classic and straight, SK and TCLE series are classic shapes, there is a concave "belt" on the body of the can, and the logo of the thermos is printed in the middle, the price of the two series is the same level, 470mL SK and 520mL TCLE are both 298 yuan. The TCLD series of straight barrel simmering tanks looks simpler and is relatively cheaper. Different from the SK series made of 304 stainless steel, TCLE and TCLD are made of 316 stainless steel, which is more stable, but there is little difference between the two stainless steel materials in use.
 
In addition to the simmering pot, THERMOS has also launched a larger capacity simmering pot. Different from the simmering pot, the simmering pot is equipped with an independent inner tank, which can be taken out of the double-layer vacuum shell, placed on an induction cooker or an open flame to heat, put in the ingredients and water for about 20 minutes to heat the inner pot into the shell, and cook the food through high temperature stewing, but the price of this kind of stewing pot is higher, the price of 1.8L TCRA is 611 yuan, and the price of products above 3L is more than 1,000 yuan, which is suitable for consumers with a large budget and do not want to spend time on food cooking.
 
There are 3-4 independent lunch boxes in the multi-layer insulated barrel to prevent the food from smelling and deteriorating, JBA-2001 is divided into three layers, if you feel that the ordinary version of the strap is not convenient enough to carry, you can add 50 yuan to buy an upgraded version with a portable bag, the price is 599 yuan. However, the multi-layer thermal insulation barrels launched by Japanese vacuum insulation brands such as thermos, zojirushi, tiger and peacock have one thing in common, that is, the bottom and middle lunch boxes and soup boxes are wrapped by vacuum shells, which have a thermal insulation effect, while the topmost vegetable box is in the room temperature zone, and the heat preservation is slightly poor, but because its inner box is made of food-grade PP material, it is convenient for microwave heating.