How to use food grade hydrogen peroxide？
1. For disinfection of production equipment and pipelines, dilute hydrogen peroxide by 30-50 times with water, rinse the equipment with the diluent, and soak the pipeline for 20-30 minutes, and then release the disinfectant without washing with water.
2. To disinfect the packaging container, soak the container for 20-30 minutes with a food-grade hydrogen peroxide solution diluted 35-100 times, or pressurize the container for 10-30 seconds, and then release the disinfectant without washing with water.
3. Disinfection of the production space: After diluting the food grade hydrogen peroxide and water in a ratio of 1:100, spray the disinfectant in the air with a sprayer to achieve the effect of disinfecting the production space, which is beneficial for food companies to comply with GMP and HACCP standards Carry out production and management.
4. Disinfection of personnel The solution obtained by diluting food-grade hydrogen peroxide 50-100 times can disinfect the hands and feet of workers. To sterilize different occasions and different items, different methods and different concentrations of disinfectant can be used according to the actual situation, which can achieve the ideal sterilization effect and reduce the use cost. Use food-grade hydrogen peroxide for disinfection. Common methods include spraying, washing, spraying, soaking, and wiping.
5. Sterilization of aseptic packaging of dairy products There are two main methods for sterilizing food-grade hydrogen peroxide for dairy products: one is to heat the food-grade hydrogen peroxide to a certain temperature, and then sterilize the outer box or packaging materials. This kind of sterilization is generally carried out in a hydrogen peroxide tank. The other is to evenly coat or spray food-grade hydrogen peroxide on the surface of the packaging material, and then evaporate the hydrogen peroxide through electric heating, radiation or hot air heating to complete the sterilization process. The actual sterilization process is carried out during the heating and evaporation of hydrogen peroxide. Since the boiling point of water is lower than that of hydrogen peroxide, the sterilization is done in high temperature and high concentration hydrogen peroxide in a short time. Milk is very sensitive to bacteria, but because the milk itself is ultra-high temperature sterilized, its packaging can be stored at room temperature for a long time after being thoroughly sterilized by hydrogen peroxide. The popular aseptic packaging of Tetra Pak, Tetra Pak pillows, Baileys, Combibloc and other liquid milk packages on the market are all sterilized by hydrogen peroxide. Aseptic packaging of dairy products has high requirements for the stability and purity of 35% food-grade hydrogen peroxide.
Food grade hydrogen peroxide packaging
Food-grade hydrogen peroxide is packaged in polyethylene barrels that meet the requirements of food hygiene. Small vents should be distributed on the lid of the packaging container. Since hydrogen peroxide is an oxidizing sterilant, the packaging barrel should have the "oxidant sign" and "corrosive sign" specified in GB190 and the "up sign" specified in GB191. The packaging label should comply with the provisions of GB7718-1994 and be marked with the words "food additives".
Storage and transportation of food grade hydrogen peroxide
1. Food-grade hydrogen peroxide should be stored in a cool, ventilated, and dry warehouse, away from direct sunlight.
2. It is strictly forbidden to mix with alkalis, metals, metal compounds, and flammable products.
3. The container should be covered and kept exhausted to maintain the purity of the hydrogen peroxide in the container and prevent contamination.
4. If the container is broken, leaking, etc., flush it with plenty of water in time.
5. Under good storage and transportation conditions, the concentration of hydrogen peroxide will not drop more than 3% of the original concentration within one year.
6. The transportation of hydrogen peroxide should be carried out in accordance with the oxidant transportation regulations. During transportation, the outside of the container should be covered with cover to prevent sun and rain.
7. Not mixed with toxic and hazardous materials.
8. Do not touch the packaging barrel directly with your hands, and wear plastic gloves when carrying it.
9. If hydrogen peroxide leaks out of the bucket, or the transporter’s hands come into contact with hydrogen peroxide, flush it with plenty of water immediately.
Safety and protection of food grade hydrogen peroxide
1. Toxicity In a general sense, food-grade hydrogen peroxide is a non-toxic substance, but it is irritating to human skin, eyes and mucus. After hydrogen peroxide enters the human respiratory system, it can stimulate the lungs and even seriously damage the organs. When hydrogen peroxide splashes on the surface of the human body or in the eyes, rinse with plenty of water immediately.
2. Flammability Any concentration of hydrogen peroxide is non-flammable, but it is a strong oxidant. Especially when the concentration is high, it is easy to cause the combustion of other combustible substances. The higher the concentration of hydrogen peroxide, the easier it is to cause other substances to burn. When the spilled hydrogen peroxide comes into contact with other combustible substances, it should be rinsed immediately with a large amount of water to wash off the hydrogen peroxide.
3. Explosive hydrogen peroxide will decompose under the catalysis of impurities, releasing oxygen and heat. The higher the ambient temperature and the concentration of hydrogen peroxide, the faster the decomposition rate of hydrogen peroxide. Once the decomposition reaction is induced, the decomposition will accelerate on its own as the degree of heat generation and temperature increase increases. As a result, the temperature of the material will rise further and more gases (oxygen and vaporized steam) will be produced. At this time, if the container is airtight, a high-pressure environment will be generated inside, which may cause the container to burst. Therefore, the container used to store hydrogen peroxide should be equipped with dust-proof vents to safely release the gas that may be generated.
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