High Pressure Processing (HPP)

HPP high pressure processing for Juices, Smoothies & Co.

HPP high pressure processing for Fruit products, guacamole, avocado

HPP high pressure processing for Meat products, ham, sausages, bacon etc.

HPP high pressure processing for Ready meals

HPP high pressure processing for Dairy products, cream cheese, etc.

HPP high pressure processing for Seafood, oysters, shrimps, lobster, mussels

HPP high pressure processing tolling / Toll processing

See video: High-pressure preservation at 6,000 bar

High pressure processing (HPP)

Simply fresh and safe – high pressure preservation at 6,000 bar

Consumers want natural, fresh products – ideally without additives and without the loss of nutrients caused by heating. At the same time, around 30% of food is still being thrown away, some of it before even being sold. High pressure processing by thyssenkrupp allows gentle preservation of food by high pressure – without additives or heat. The latter is an important difference to "classic" thermal pasteurization, even though HPP is also known as "high-pressure pasteurization". Products are processed in their packaging. It works for vacuum and modified atmosphere packs and for plastic bottles. The result: much longer shelf life and maximum product safety and therefore more satisfied customers. At the same time the texture, look, nutrients and taste of your products remain intact. And all of that is achieved while HPP being environment-friendly and free of waste.

How does HPP work? Water and pressure. Nothing else.

All the HPP process needs is water (which can be recirculated) and power for the pumps. By using pressure for the preservation of foods and beverages neither heat nor any chemicals are required. Products are typically cooled before entering the HPP process. Pressurization increases the temperature by around 18°C and the products are compressed by around 16% in their packaging. During decompression the product cools roughly back to its initial temperature and expands back to its original size. As high temperatures are not needed the products remain fresh and flavorful and won’t undergo unintended changes in color or structure as if thermal heat would be applied. This makes high pressure processing or high hydrostatic pressure processing (HHP) as it can be called as well the natural choice for high quality.

Here we answer further questions about High Pressure Processing: What is HPP?

NEW: Uhde 400L+ HPP Plant

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Up to 10x longer shelf life
No additives, no heat
Maximum safety

Up to 10x longer shelf life

No additives, no heat

Maximum safety

The products are conveyed in special baskets into a high-pressure vessel. It moves into the machine and is filled with water. Pumps increase the pressure in the vessel to 6,000 bar. This corresponds roughly to a fingernail sized surface holding the same force as a blue whale pressing down. In this process the hydrostatic pressure acts instantaneously and evenly leaving no crushing effect on the products. After a few minutes – according to product – the pressure is reduced again in a controlled way. The rest is simple: drain the water and unload the vessel, and the machine is ready for the next round of high pressure processing. After a few minutes, the system is depressurized - and the product in its final package is ready for end use or the next processing step.

Products - HPP solutions for your business

Uhde 700-60 TWIN
High availability and efficiency: over 3,200 kg (7050 lbs) throughput per hour

Uhde 400L+ HPP Plant — Uhde 400L+
Individual, smart, flexible.

Uhde 55-60 HPP — Uhde 60-60
High quality for low volumes

Uhde 002-70 rendering — Uhde 002-70
Our solution for labs, product and process development

Special systems HPP — Sterilization systems
High pressure + thermal treatment = sterilization system

Our HPP plants and machines

Uhde HPT is specialized in the construction of HPP plants and machinery. The Uhde High Pressure Technologies brand has stood for high-pressure excellence "made in Germany" since 1930. Our experienced team of engineers, chemists and technicians has been building tailor-made HPP high-pressure processing systems for more than 20 years. The machines are individually tailored to the high-pressure pasteurization of our customers.

Complete high-pressure processing solutions from a single source

Uhde High Pressure Technologies info graphic

Visit our HPP Lab on YouTube!

See High Pressure Processing by thyssenkrupp in action

HPP is a non-thermal shelf life extension process that takes place at 6000 bar. Since this pressure is almost unimaginably high in daily life compared to our applications, there are some questions about this procedure. thyssenkrupp-HPP would like to answer these questions and has therefore initiated the HPP Lab where questions are answered based on video sequences. We deal with topics such as packaging, products and closures but also with the pressure process itself. Have fun and if there are questions that have not yet been answered, we look forward to your suggestions.

Take me to the HPP Lab on YouTube