Yogurt pasteurizer is an efficient and widely used food processing equipment, which utilizes pasteurization method to sterilize yogurt.
the principle of sterilization
The principle of pasteurization is to kill pathogens in the food within a certain temperature range, through the appropriate temperature and holding time treatment, while retaining a small portion of harmless or beneficial bacteria or bacterial spores. This method utilizes the characteristics of pathogens are not very heat-resistant, with the appropriate temperature and holding time treatment to kill them all.
the sterilization method
Yogurt pasteurizer has two main sterilization methods:
- Low temperature and long time treatment: heat the yogurt to a lower temperature (such as 62 ~ 65 ℃), and keep it for a period of time (such as 30 minutes). This method can kill most of the pathogenic bacteria in yogurt, while retaining some beneficial bacteria.
- High temperature short time treatment: Heat the yogurt to a higher temperature (e.g. 7590°C) and hold it for a short time (e.g. 1516 seconds). This method of sterilization is shorter and more efficient, but attention needs to be paid to controlling the temperature and time to avoid nutritional loss.
application
Pasteurizer is widely used in food, beverage, yogurt, pickles, pharmaceutical and other industries. For yogurt production, pasteurizer is the key equipment to ensure the quality and safety of yogurt.
equipment features
Cold water circulation system
Yogurt pasteurizer is usually equipped with a cold water circulation system for cooling after sterilization. There are two main types of refrigeration, one is compressor refrigeration, which is fast and effective; the other is cold water circulation refrigeration, which is less costly.
Precise temperature control
The PU value is set by the temperature controller and transformed into the curve of the actual control temperature of the water tank in each temperature zone, so as to realize the precise control of the temperature.
Automatic operation
The main drive motor drives the upper and lower bottle conveyor chain net to pass the materials through the process of warming up and preheating, sterilizing and cooling down and cooling down in turn, realizing automatic operation.
Directions for use
- Preparation before operation: Before using the yogurt pasteurizer, you must read the manual carefully and operate according to the requirements.
- Material control: during the sterilization process, do not exceed the marking line, otherwise it may lead to insufficient sterilization.
- Cooling time: after the sterilization, do not open the sterilizer immediately, you should wait for a period of time to let the yogurt cool down fully.
- Maintenance and care: Regularly clean and sterilize the yogurt pasteurizer to ensure hygiene and sterilization effect.
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