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Common desiccant in puffed food, which can help us remove moisture.
Common desiccant in puffed food, which can help us remove moisture.
Release Time：
2019-04-18
Common desiccant in puffed food, which can help us remove moisture, many people don't know. Food desiccants are generally non-toxic, tasteless, non-corrosive, and environmentally friendly. Food desiccants are used to reduce the humidity in food bags to prevent food spoilage. Many foods contain desiccants, but different foods use different desiccants.
Food desiccant Generally non-toxic, tasteless, non-corrosive, and environmentally friendly. Food desiccants are used to reduce the humidity in food bags to prevent food spoilage. Many foods contain desiccants, but different foods use different desiccants. Common ones include silica gel desiccants, lime desiccants, mineral montmorillonite desiccants, etc. Let's briefly talk about desiccants below.
Only silica gel desiccants can be reused. Many foods we eat, such as biscuits and potato chips, contain desiccants in their packaging, Desiccants The role is very necessary, mainly to reduce the humidity in food, prevent food from deteriorating after getting damp, and also has a certain role in inhibiting bacteria. General desiccants will also indicate that they are not edible.
I. Types of food desiccants
1. Quicklime desiccant
The main component of quicklime desiccant is calcium oxide. Its water absorption capacity is achieved through a chemical reaction, so the water absorption is irreversible. Regardless of the external humidity, it can maintain a moisture absorption capacity greater than 35% of its own weight, making it more suitable for low-temperature storage. It has excellent drying and moisture absorption effects and is relatively inexpensive. It can be widely used in food, clothing, tea, leather, footwear, electrical appliances and other industries. Currently, this type of desiccant is most commonly used in "snow cakes". However, because quicklime desiccants have strong alkaline corrosiveness, incidents of harming children or the elderly's eyes often occur, and they are gradually being phased out.
2. Silica gel desiccant
This desiccant is a different variety of silica gel in moisture-permeable small bag packaging. The main raw material, silica gel, is a high-microporous structure of hydrated silicon dioxide. It is non-toxic, tasteless, odorless, chemically stable, and has strong hygroscopicity. Therefore, it is widely used in the storage and transportation of instruments, meters, equipment, leather, luggage, shoes, textiles, food, and pharmaceuticals to control the relative humidity of the environment, prevent items from getting damp, mildew, and rust. For example, it is used in xylitol and is the only desiccant recognized by the EU.
3. Montmorillonite desiccant
This Desiccants Uses pure natural raw material bentonite, green and environmentally friendly, non-toxic and tasteless, and harmless to the human body. It has good adsorption performance at room temperature and general humidity, has adsorption activity, and has the functions of static dehumidification and odor removal. It not only has fast adsorption speed and high adsorption capacity, but also is non-toxic, tasteless, non-corrosive, and environmentally friendly, especially when used in food packaging, it is harmless to the human body. Applicable range: Widely used in products that cannot use oil seals or gas phase sealing, such as: optical instruments, electronic products, medical health, food packaging, military products, and civilian product dry air sealing.
4. Calcium chloride desiccant
The main raw material of calcium chloride desiccant is calcium chloride, which is refined from high-quality calcium carbonate and hydrochloric acid through reaction synthesis, filtration, evaporation and concentration, and drying processes. White porous blocky, granular, or honeycomb solid. Slightly bitter taste, odorless. The aqueous solution is colorless. Mainly used as a raw material for the production of various calcium salts in inorganic chemical industry; also used as a desiccant for gases, and a dehydrating agent in the production of alcohols, esters, ethers, and acrylic resins. In the food industry, it is used as a calcium fortifier, solidifier, chelating agent, and desiccant.
5. Fiber desiccant
Fiber desiccant is made from pure natural plant fibers through special processes. Among them, especially the film-coated fiber desiccant tablets are convenient and practical and do not take up space. Its moisture absorption capacity reaches 100% of its own weight, which is unmatched by ordinary desiccants. In addition, the product is safe and hygienic, and the price is moderate, making it an ideal choice for many biological, health foods, and pharmaceuticals.
6. Silicon dioxide
Another desiccant whose main component is silicon dioxide is non-toxic and non-corrosive compared to calcium oxide, and its shape is relatively stable, and its dilution performance is better. It is not easily absorbed in the gastrointestinal tract, so even if it is ingested, it will be excreted from the body, and no special treatment is needed if it is accidentally ingested. This is relatively safer.
Desiccants Uses:
1. Avoid photos from getting damp
When storing photos in albums, boxes, or cabinets, you can add a desiccant to prevent the photos from getting damp and protect them.
2. Remove fog
In areas with high humidity, placing a desiccant next to the car windshield can save you the trouble of removing fog.
3. Prevent blade rust
Place a desiccant in the storage bag (box) of razors or blades to prevent the blades from rusting due to moisture.
4. Preserve food
Food storage cabinets should also contain some desiccants to help food dry and preserve for a long time.
Safety hazards of desiccants:
Usually, we throw away the desiccant after eating the food, but accidents caused by desiccants to children are still common in daily life, and there are many every year.
Remind everyone that many families buy various puffed foods, so children have many opportunities to contact these Food desiccant opportunities. Sometimes we don't know Desiccants the ingredients, so for safety reasons, it's best to stay away from desiccants.
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