The metal-made thermos bottle or thermos has excellent temperature and cooling effects, and is loved by many people. However, a plaguing "metal odor" may appear after long-term use. In fact, this aliment can be effectively prevented and improved through correct cleaning methods.

Why does a temperature bottle/cup smell metal?

The metal smell of water tanks and water cups usually have the following reasons:

1. The ingredients in drinks react with metals

The single acid and caffeine contained in drinks such as tea and coffee may react with water-filled stainless steel or other metal materials, thereby exude a strange smell.

2. Dirty and bacterial growth

If there is dirt inside the water tank or dirt that cannot be seen by the naked eye, it may lead to bacterial growth, and produce a odor after oxidation during time, and even affect the flavor of the drink.

3. New products are smelly when manufactured

Even if they are just bought water, they may be smelly metal or chemical odor due to processing, smear or packaging. Therefore, you must clean and clean the new product before use.

However, Yang Zonghai, director of the Clinical Toxics Center and professor of Bed Department of Linkou Changgeng Hospital, was interviewed and explained that "wet-keeping cups are not suitable for drinking coffee, milk tea and other beverages". The key is that they should be finished as soon as possible.

There is a term for "dangerous temperature" in medicine. It is not that you cannot use a warm-in cup to prepare hot coffee and hot milk tea. The problem lies in the storage time and temperature. If you put it for too long, the temperature in the temperature in the warm-in cup drops to a dangerous temperature of 7 to 60 degrees Celsius, it is easy to cause microbial staining.

How to effectively remove the metal smell of water?

Just master the following simple steps, you can restore your water to freshness and no smell:

1. Clean immediately after each use

. Use a neutral cleaning agent with a soft brush to clean the inside of the body thoroughly.

. The hood and silicone sealing tray must be removed and cleaned, because these places are most likely to hide dirt.

. After cleaning, wipe and dry thoroughly to avoid moldy smell or raw lens caused by water.

. Do not store it in conjunction before drying, to avoid dampness.

2. Use deep-layer tric acid to clean (it is recommended once a week)

If the water tank has a distinct smell or the inner wall is rough and the scale is generated, you can try the following method:

1. Add 1 teaspoon of tric acid to 500ml of water (you can use tric acid or tric acid for cleaning products sold in supermarkets).

2. Pour citric acid water into the water tank and let it rest for 30 minutes to 3 hours.

3. Shake thoroughly and pour out, then wash and clean with clean water.

Note: Please do not soak for a long time (more than 3 hours) to avoid damage to the metal material.

Jong Zonghai reminds that it is recommended to use a sea cushion for the inner wall of the stainless steel to avoid using a sharp brush, and do not brush too hard. If the mat is damaged, metal may be exposed. In theory, there should be no lenses, and if they are produced, they should be immediately replaced.

In addition, many people love to use the technology seawall to brush temperature bottles, cups, etc. Yan Zonghai pointed out that the technology seawall should not be used for dishwashing chopsticks, cups and other edible tableware, but can only be used for environmental cleaning.

Use ceramic matte water tank instead of metal matte

If you think it is too cumbersome to remove and wash every day, or you are particularly concerned about the strange taste problem, you can consider using ceramic matte water tank. The inner layer of this type of water tank is processed and treated with ceramics, and the following advantages are provided:

. It does not react with the biochemical reaction of beverages and will not have a metallic smell

. The surface is smooth and cleaner is more labor-saving

. Suitable for various drinks such as tea, coffee, sports drinks, etc.