What Are The Different Types Of Pasteurizers?

As the name suggests, pasteurizer is mainly used to sterilization,and is one of the most important equipment for food and beverage production. The equipment through heating and cooling can effectively kill a variety of bacteria and pathogens so that it can ensure that food and beverage in the shelf life will not deteriorate due to bacterial growth during the shelf life, which can better ensure food safety and extend the shelf life of food and beverage.However, pasteurizer is only the name of the equipment, in the actual application process, according to the characteristics of the product and the different sterilization technology, is divided into many different types. For example, plate pasteurizer, tubular pasteurizer, tube in tube pasteurizer, spraying type pasteurization and cooling tunnel, water bath squeegee sterilization machine, sterilization kettle and so on. Different types of pasteurizers have different working principles and effects.Plate pasteurizer, tubular pasteurizer, tube in tube pasteurizer are for the effective sterilization of products before filling, and spraying type sterilization cooling machine, water bath sterilization cooling machine, sterilization kettle are for the sterilization of products after filling. Different products and filling forms correspond to different sterilization processes, and the following will take you to explore what are the different types of pasteurizers?

Plate sterilizer is the most common type of pasteurizers, which has simple structure and is easy to operate. The core component of the device is a part composed of a number of parallel metal plate heat exchangers, forming a heat exchange channel, so that the fluid beverage flows in the channel, killing microorganisms by transferring heat and maintaining a constant temperature, and then cooling it through a cooling medium. Plate sterilizer can be applied to a variety of non-granular liquid food and beverages, such as milk, juice drinks, tea drinks and other liquids.According to the different sterilization temperature,plate pasteurizer can be divided into plate pasteurizer and plate high temperature sterilizer(HTST). The plate pasteurizer of our company has an efficient heat recovery design, which fully reduces energy consumption and saves a lot of use costs for the production of users.

The tubular pasteurizer is a heat exchanger made up of metal pipes and shells. It works by heating and cooling fluid beverages to eliminate microorganisms. Unlike the plate pasteurizer, this type of pasteurizer is not limited to ordinary products like milk and beverages; it is also well-suited for high-viscosity and small-particle beverage products, such as soy sauce, tomato sauce with a brix level of 18-20, and concentrated juice. The tubular pasteurizer boasts strong adaptability and allows for extended continuous production periods. Based on varying sterilization temperatures, it can be categorized into two types: the standard tubular pasteurizer and the tubular ultra-high temperature (UHT) sterilizer.Furthermore, the design of the tubular pasteurizer's tubes can be customized and adjusted according to the specific requirements of different product characteristics, thereby meeting a wide range of production needs. Tubular pasteurizer can usually be produced continuously for more than 10 hours before CIP cleaning. Our company's tubular pasteurizer has an design of efficient heat recovery, fully reduce energy consumption, and save a lot of use costs for the user's production.

The tube in tube pasteurizer is usually used for the sterilization of high-viscosity concentrated jam products, such as 36-38Brix ketchup, strawberry jam, mayonnaise, etc. The tube in tube pasteurizer has good pressure resistance, no sanitary dead ends and long continuous production time. The tube in tube pasteurizer is usually connected to the aseptic filling machine (220kg/ barrel), and can also be connected to the BIB filling machine. Our company's tube in tube pasteurizer has an efficient heat recovery design, which fully reduces energy consumption and saves a lot of use costs for the user's production.

Spraying type pasteurization and cooling tunnel, also known as the spraying-type sterilization cooling machine, is commonly utilized for acidic products post-filling, encompassing acidic milk drinks, fruit beverages, and more. Prior to filling, these acidic products typically undergo sterilization, achieving a satisfactory level of microbial reduction. The primary objective of the secondary sterilization process after filling is to leverage the product's hot-fill temperature. This is accomplished by spraying hot water onto the product and packaging for an extended period (usually 10-30 minutes), ensuring effective sterilization within. This step aims to prolong the shelf life of the product. Simultaneously, the machine cools the product, rapidly reducing its temperature to normal levels in a short period. This prevents any alteration in the product's taste due to prolonged exposure to high temperatures. The spraying-type sterilization cooling machine is typically employed with PET bottles, glass bottles, cans, and other packaging formats. Our company's spraying type sterilization cooling machine has a high efficiency heat recovery design,and full energy saving effect.

The water sterilization cooling machine, or what we also call the water bath sterilization and cooling machine, works kind of like the spraying type pasteurization cooler. You often see it in use when filling products like acidic milk drinks, fruit beverages, and condiments. But here's the thing: unlike the spray machine, the water bath version is a better fit for flexible packaging, like those long-lasting yogurt pouches, bags of fruit purees, ketchup packets, and seasoning bags. Our clients include Master Kong. Our water sterilization cooling machine has a high efficiency heat recovery design, full energy saving effect.

Sterilization Kettle which is also called retort is usually used for the sterilization of neutral products after filling, including soy milk, tea drinks, milk, cans, etc. Neutral products need to achieve a long shelf life (6-12 months), and the production process is usually UHT sterilization and aseptic filling process. However, the cost of UHT sterilization and aseptic filling equipment is high and can only be used for fluid products with low viscosity. Therefore, in terms of investment costs and effectively extending the shelf life of neutral products, many factories on the market use sterilization kettle after filling for high temperature and high pressure sterilization. However, the packaging form of the product entering the sterilizer must be able to meet the conditions of high temperature and pressure, such as tinplate cans, PE bottles, glass bottles and so on. Of course, sterilizers are also commonly used in the pet food industry. According to the different products, there are steam direct injection sterilizer, water bath spray sterilizer, rotary sterilizer and so on.

The above are several common types of pasteurizers, each type has its own unique characteristics and scope of application, and each sterilization machine can be modular design according to your requirements to further improve production efficiency. How to effectively save energy is a very important link, and our company usually spends more costs on heat recovery.