How long can a thermos cup be used before it is considered qualified?

How long is the typical service life of a thermos cup? How long does it take to be considered a qualified thermos cup? How often do we need to replace the thermos cup with a new one for daily use?

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How long is the service life of a thermos cup? To give you an objective analysis, we have to take the thermos cup apart and analyze it. The thermos cup is composed of a cup lid and a cup body. The material of the cup body is mainly stainless steel. At present, various factories on the market use more 304 stainless steel. The production process of the cup body liner usually uses electrolysis process and vacuuming process. Taking 304 stainless steel as an example, without corrosion from acid and alkali substances, it can be used for more than 5 years with proper maintenance.

During use, the electrolytic process will be corroded by acidic beverages and may be damaged due to improper cleaning methods. If used properly, the electrolytic coating can be used for more than 3 years. The purpose of the vacuuming process is to achieve the best insulation function of the thermos cup. The vacuuming process will gradually destroy the vacuum during use due to loose production, and will also cause damage due to the water cup falling during later use. However, in the production process If used strictly and carefully in the later period, the vacuuming process can usually guarantee a service life of more than 3 years.

Take the cup lid made of plastic as an example. Different plastic materials have different service lifes, especially cup lids with opening and closing functions. The factory will do a lifespan test before leaving the factory. Usually the test standard is 3,000 times. If a water cup is used ten times a day, About times, then 3,000 times can meet the needs of one year of use, but 3,000 times is only the minimum standard, so a qualified cup lid combined with reasonable structural cooperation can usually be used for more than 2 years.

The sealing ring used to seal the cup lid and cup body is mostly silica gel currently on the market. Silicone is elastic and has a limited service life. In addition, it is soaked in hot water for a long time. Generally, the silica gel sealing ring needs to be replaced once a year. That is to say, the safe service life of the silicone sealing ring is about 1 year.

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Through the life analysis of each part of the thermos cup, a qualified thermos cup can be used for at least one year if used properly. However, according to our understanding, a thermos cup with exquisite workmanship and high quality can be used for 3-5 years. There is no problem.

So how long does it take to be considered a qualified thermos cup? Considering the safety of the silicone ring, it takes at least 1 year for a thermos cup to be replaced from the factory to replacement parts. Therefore, if a thermos cup has problems such as poor performance and no insulation after being used for less than a year, it means that this is The thermos cup is unqualified.

Finally, the answer to a new question is how long does it take to replace the thermos cup in our daily use? How long it is used is not determined by the long life of the thermos cup. How long it is used mainly depends on the user’s usage habits. We have seen some that need to be replaced after two or three months of use, and we have also seen some that are still being used after 5 or 6 years of use. Let me give you some advice. If you only use a thermos cup to hold cold or hot water, and clean the entire cup promptly after use, as long as the materials are qualified and the workmanship quality is guaranteed, there will be no problem in using it for 5 or 6 years.

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But if you hold various types of drinks in daily use, such as coffee, juice, alcohol, etc., and you cannot clean them in time after use, especially some friends forget that there are unfinished drinks in the water cup after use. If the inside of the water glass is moldy, it is recommended that such friends replace it every two or three months. Once mildew occurs in the water cup, although it can be completely sterilized through high temperature or alcohol sterilization, it will cause damage to the liner of the water cup. The most obvious phenomenon is the oxidation of the liner of the water cup. Once the liner of the water cup is oxidized, its service life will usually be greatly shortened. Shortening, and the oxidized liner can also cause harm to the human body during use. If this happens two or more times, we recommend replacing the thermos cup with a new one in time.

 


Post time: Jan-20-2024