Low Temperature Pasteurization Machine Product Introduction

The Automatic Low Temperature Pasteurization Machine for Food is an industrial thermal processing system designed for the controlled pasteurization of packaged food and beverage products.

Unlike high-temperature retort sterilization, this equipment operates under relatively mild temperature and pressure conditions. The typical pasteurization temperature range is 80–95°C, making it particularly suitable for products where excessive heat could negatively affect flavor, texture, color, or other quality characteristics.

During processing, circulating hot water or a steam-spray system distributes heat throughout the treatment section. Continuous circulation helps maintain uniform processing conditions around the packaged products, while temperature sensors and automatic controls regulate the selected pasteurization parameters.

The equipment can process a wide range of packaging formats, including glass bottles, plastic containers, jars, and flexible pouches. Typical applications include sauces, ketchup, pickled foods, beverages, dairy products, jams, prepared foods, and other packaged products requiring controlled low-temperature pasteurization.With PLC automatic control, stainless steel construction, heat recovery, water recycling, and customizable processing configurations, the machine provides an efficient solution for commercial and industrial food production.

Key Features

Low Temperature Pasteurization
The machine typically operates between 80°C and 95°C, providing controlled thermal treatment without exposing products to the much higher temperatures associated with commercial retort sterilization.

Gentle Product Processing
Controlled lower-temperature treatment helps reduce unnecessary thermal impact on sensitive foods, supporting better retention of natural flavor, color, texture, and overall product quality.

Uniform Heat Distribution
Circulating hot water or steam spray distributes thermal energy around the packaged products, helping achieve consistent processing conditions throughout the machine.

PLC Automatic Control
The PLC control system automatically manages key operating parameters, reducing manual intervention and improving process repeatability.

Accurate Temperature Monitoring
Temperature sensors continuously monitor operating conditions, allowing the control system to maintain the selected pasteurization temperature.

Water Recycling System
Process water can be circulated and reused, reducing unnecessary water consumption during industrial production.

How Does the Low Temperature Pasteurization Machine Work?

1. Product Feeding
Sealed bottles, jars, pouches, or other packaged foods are loaded into the machine manually or through an automatic conveying system.

2. Preheating
Products can first pass through a gradual heating stage to reduce sudden temperature changes and prepare them for pasteurization.

3. Pasteurization
Hot water circulation or steam spray transfers heat to the packaged product.The processing temperature is typically controlled within the 80–95°C range, depending on the food product and required pasteurization process.

4. Temperature Holding
The products remain under controlled thermal conditions for the required holding period.Both temperature and residence time should be determined according to the product formulation, packaging format, microbiological target, and required shelf life.

5. Cooling
After pasteurization, products can be gradually cooled to the required outlet temperature.

6. Product Discharge
The processed products leave the machine and can proceed to drying, labeling, inspection, secondary packaging, or storage.

Technical Specifications

Applications

• Sauce & Ketchup
  Suitable for packaged ketchup, tomato sauce, chili sauce, condiment sauces, and similar products requiring controlled thermal processing. Ketchup and sauce are specifically shown as applications of the reference machine.
• Pickled Foods
  Can be used for pickled vegetables and other packaged preserved foods requiring pasteurization after filling and sealing.
• Prepared Foods
  Suitable for selected ready-to-eat and prepared food products packed in heat-resistant containers or pouches.
• Egg Products
  Packaged cooked and seasoned egg products can be processed under appropriate pasteurization conditions. Soy egg is specifically shown among the applications of the reference equipment.
• Meat Products
  The system can be configured for selected packaged cooked meat products. The reference manufacturer shows stewed chicken leg as one application.
• Fruit Products
  Suitable for jams and selected packaged fruit products requiring relatively gentle thermal processing.
• Beverage Products
  Can be configured for bottled or packaged fruit beverages and other heat-sensitive drinks requiring pasteurization.

Why Choose Us?

• Designed for Gentle Pasteurization
  The machine provides controlled low-temperature thermal processing for foods that do not require the severe heat conditions of conventional high-temperature retorts.
• Uniform Temperature Distribution
  Water circulation or steam spray helps distribute heat throughout the processing area and maintain consistent product treatment.
• Flexible Packaging Options
  The machine can accommodate bottles, jars, plastic containers, pouches, and other suitable heat-resistant packages.
• Automatic Process Control
  PLC control simplifies operation and provides more consistent management of processing temperature and production parameters.
• Energy-Efficient Operation
  Water recycling and heat recovery help reduce unnecessary water and energy consumption.
• Hygienic Stainless Steel Construction
  SUS304 stainless steel provides good corrosion resistance and facilitates cleaning in industrial food-processing environments.
• Flexible Capacity
  Machine dimensions, effective processing volume, conveyor width, heating system, and production capacity can be configured according to project requirements.

FAQ

What is a low temperature pasteurization machine?
It is thermal processing equipment designed to reduce harmful microorganisms in packaged food using controlled temperatures lower than conventional high-temperature retort sterilization. The reference machine typically operates at 80–95°C.

What foods can this machine process?
It can be used for sauces, ketchup, jams, pickled vegetables, beverages, selected dairy products, prepared foods, and other suitable packaged products.

What is the pasteurization temperature?
The reference equipment typically operates between 80°C and 95°C. The actual temperature and holding time should be determined according to the specific product and required microbiological result.

How does the machine heat the product?
The system uses circulating hot water or steam spray to distribute heat around the packaged products.

What packaging formats are suitable?
The reference machine supports glass bottles, plastic containers, jars, and flexible pouches.

Is the machine made of stainless steel?
Yes. The reference configuration uses food-grade SUS304 stainless steel.

Does the machine have automatic temperature control?
Yes. PLC automatic control and temperature monitoring are used to maintain stable processing conditions.

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