It's good to buy a glass liner for a thermos. Hot water bottles are daily necessities, which can be used to keep warm and keep out the cold. Common ones are narrow mouth type, big mouth type and cup type. A thermos can provide long-term heat preservation. Here is what kind of glass liner to buy for thermos.

What glass liner should I buy for thermos bottles? 1 stainless steel liner.

Most of the thermos pots with stainless steel insulation liner are made of food-grade 304 stainless steel, which has strong corrosion resistance and low thermal conductivity, and can provide good insulation effect after interlayer vacuum treatment.

2, glass liner

High borosilicate glass or borosilicate glass is mostly used in insulated kettles with glass liners, with good high temperature resistance and safe use. Silver plating on glass liner can also use the principle of specular reflection to reduce heat loss and improve heat insulation effect.

3, ceramic liner

Ceramic insulation liner is safe and harmless, but the cost and insulation effect are not particularly ideal, so there are few insulation pots with ceramic liners in the market.

4, purple sand liner

The inner container made of purple sand has certain functions of heat preservation, health preservation and conditioning, and is usually used with stainless steel shell to improve the heat preservation effect and service life. Another advantage of purple sand thermos is that it is slow in heat transfer and not easy to heat.

5, plastic liner

The plastic liner only has heat preservation function, which has short heat preservation time and poor heat preservation effect, and is generally not used often, so there are fewer plastic heat preservation pots on the market.

The above are five kinds of common liner materials for thermos pots. Usually, stainless steel liner and glass liner are two common liners. So is the glass liner of the thermos good or stainless steel?

Glass thermos or stainless steel thermos?

Generally, buying a thermos will encounter the problem of buying a glass thermos or a stainless steel thermos. So how to choose these two kinds of thermos? The difference between glass thermos and stainless steel thermos is mainly reflected in the following aspects:

1, insulation effect

According to the requirements of national standards, the daily thermal insulation container for double-layer glass vacuum bottle liner is 1.8~2.0L, with a diameter of 40~44mm, temperature measuring time of 24h, and the thermal insulation efficiency is ≥60 degrees Celsius; The capacity of stainless steel products with inner plugs is ≥ 1.8L, and the caliber is ≥39~