HTST pasteurizer

The High-Temperature Short-Time (HTST) pasteurizer is a highly efficient form of food processing. It is used to heat rapidly and cool milk, beer, juice, sauces, and other liquid products to eliminate harmful micro-organisms and extend shelf life. This process is known as pasteurization. Properly using an HTST pasteurizer can help maximize efficiency, reduce costs and ensure safe food products for consumers.

Steps for Using an HTST Pasteurizer

1. Set the flow rate

The flow rate must be appropriately set before beginning the pasteurization process. That will determine how quickly the product moves through the machine and how strongly it is heated during each cycle. The manufacturer’s instructions should select the proper setting.

2. Determine pasteurization temperature

The temperature needed for pasteurization varies depending on the product being processed. Generally, most High-temperature short-time pasteurizers can reach temperatures between 140 to 190°F (60-88°C). Different micro-organisms require different temperatures for destruction, so consult a food safety specialist for exact specifications and adjust accordingly.

3. Adjust heating time

Different products require different heating times to ensure proper pasteurization. For example, milk requires a minimum holding time of 15 seconds at 161°F (72°C), while juice needs 60 seconds at 145°F (63°C). The exact time should be determined based on the type of product.

4. Check for proper cooling

Once the product has been heated, it needs to be cooled quickly to stop the pasteurization process and preserve its quality. Generally, High-temperature short-time pasteurizers are equipped with a cooling system that can bring the product down to temperatures below 65°F (18°C). Monitor the temperature of the product throughout the entire cycle to ensure proper cooling.

5. Monitor product quality

Finally, it is essential to monitor the quality of the product throughout the pasteurization process. That can be done by regularly testing for bacteria and other micro-organisms. If any contaminants are detected, adjust the processing conditions accordingly.

How to maintain your High-temperature short-time pasteurizer

1. Regularly clean and inspect your High-temperature short-time pasteurizer

Cleaning and inspecting the pasteurizer is essential for maintaining its efficiency and safety. All surfaces should be wiped with a sanitized cloth to remove any dirt or bacteria. Additionally, inspect the heating elements for wear and tear and any other machine parts that may need replacing.

2. Monitor the cooling system

The cooling system of a High-temperature short-time pasteurizer needs to be monitored closely to ensure that it is working correctly. That can be done by measuring the temperature of the product throughout the cycle.

3. Check valves and seals regularly

Valves and seals should be inspected regularly to ensure they are functioning correctly. Leaks in the valves or seals can cause bacteria to enter the machine, resulting in contaminated products.


Using an HTST pasteurizer or UHT pasteurization properly is essential for producing safe foods with a high quality and shelf life. Following the steps outlined above will help ensure maximum efficiency and safety when processing products. Additionally, the machine must maintain cleanliness and regular maintenance to keep it running at peak performance. With these tips, you can ensure that your High-temperature short-time pasteurizer is always operating safely and efficiently!