Choose a thermos with or without an inner stopper

The thermos bottles on the market can be roughly divided into thermos bottles with inner stoppers and thermos bottles without inner stoppers in terms of structure. How to choose between these two types of thermos bottles when purchasing?

1. Insulated bottle with inner plug

The inner plug is a sealing structure located inside the insulated bottle, usually in close contact with the inner liner of the insulated bottle, which can keep hot or cold drinks inside the insulated bottle warm for a longer period of time. The inner stopper is made of food grade soft or hard rubber material, which can improve the sealing of the insulated bottle, avoid heat loss, and maintain temperature.

Advantages: The inner insulated bottle has better insulation and sealing performance, which can maintain the temperature of the beverage for a longer time. In the implementation of standard GB/T2906-2013, requirements are made for the insulation duration of insulated bottles with and without internal plugs. The measurement time node for insulated bottles with internal plugs is 12 or 24 hours. The measurement time node for insulation bottles without inner plugs is 6 hours.

Disadvantages: The disadvantage of an inner insulated bottle is that cleaning is relatively cumbersome, which is determined by the structure of the inner plug. For example, some inner plugs are located at the mouth of the inner bottle and are tightened by threads. This requires the inner bottle to also be machined with an inner thread structure, and there are also internal plugs in the form of snap locks. At the same time, the water outlet method of the inner plug varies from brand to brand, which increases the complexity of the inner plug structure. Complex structures can easily accumulate dirt and cause bacterial growth, affecting hygiene and making cleaning relatively cumbersome. It is recommended to use insulated bottles with inner plugs for water filling. In addition, when choosing an inner insulated bottle, it is recommended to choose a product that is easy to clean, meets or exceeds the standard.

2. Insulated bottle without inner plug

An insulated bottle without an inner plug usually refers to an insulated bottle without an inner plug sealing structure. Insulated bottles without an inner plug are sealed with the bottle body through the sealing rubber ring of the bottle cover. The contact position of the sealing rubber ring is usually the edge of the insulated bottle, and the sealing performance is slightly weaker than that of the inner plug. However, most insulated bottles without an inner plug on the market can ensure no leakage. The insulation capacity mainly relies on double-layer vacuum insulation technology to maintain.

Advantages: The advantage of a non plug insulated bottle is that it is easy to clean and maintain, and can be cleaned and disinfected at any time to maintain hygiene. In addition, the insulated bottle without an inner stopper is convenient for drinking water. Some insulated bottles adopt a one click snap cover design, allowing for easy access to water with just one hand, whether it is a straw or a straight drinking port.

Disadvantage: Compared to insulated bottles with an inner stopper, insulated bottles without an inner stopper have a relatively shorter insulation time, and beverages can be transferred or absorbed heat through the lid of the insulated bottle. Therefore, when choosing a non plug insulated bottle, it is recommended to choose a product with good quality and insulation effect.

3.Applicable scenarios

In practical use, there are slight differences in the application scenarios between insulated bottles with and without inner plugs. For scenarios with high requirements for insulation duration, such as outdoor, travel, long-distance transportation, etc., it is recommended to choose insulated bottles with inner plugs for a longer insulation time. For scenarios that require frequent use and do not require long-term insulation, such as at home, school, office, gym, etc., it is recommended to choose a non plug insulated bottle for easy use and cleaning.

Conclusion:

The difference between a thermos with and without an inner stopper lies in its insulation effect, sealing performance, and ease of cleaning and maintenance. The presence or absence of an inner stopper is not the standard for judging the quality of a thermos. When choosing, one can choose products based on their actual needs and usage scenarios, and choose products with good quality and compliance with standards.