Interpack 2017

Gerstenberg Services launches Scraped Surface Heat Exchanger for margarine production

By Jenny Eagle

- Last updated on GMT

Related tags Carbon dioxide

Gerstenberg Services offers equipment for production of margarine, shortening, ghee. Picture: Gerstenberg Services.
Gerstenberg Services offers equipment for production of margarine, shortening, ghee. Picture: Gerstenberg Services.
Gerstenberg Services has launched a Polaron Scraped Surface Heat Exchanger (SSHE) for direct cooling with the natural refrigerant CO2 to improve cooling capacity for margarine production.

As CO2 refrigerates at a higher temperature than ammonia and Freon, the Polaron SSHE can reduce energy costs and power consumption.

Margarine, shortening, ghee


Jesper Andersen, MD, Gerstenberg Services, told BakeryandSnacks, food manufacturers in the yellow fats and edible oils industry use high pressure tubular SSHEs to crystallize oil-in-water emulsions for margarine production.

The refrigerants ammonia and Freon are commonly used in the crystallisation process but Gerstenberg Services can now supply equipment using CO2 as a refrigerant.

Due to its unsurpassed heat transmission, the refrigerant CO2 results in a 40% increase in capacity of the cooling area compared to ammonia and Freon​,” said Andersen.  

For example, if you set the temperature to -20°C for ammonia or Freon you only need to set the temperature to -12°C when using CO2 as refrigerant. Crystallization at a higher temperature ensures energy savings and a higher product quality, especially for puff pastry margarine​.”

Andersen added Polaron SSHE has a scraper system for scraping-off product from the inner surface of the process cylinder.

Normally, scrapers need to be replaced after being used once but our technology allows the scrapers to be used two or four times​,” he said.

The Polaron SSHE is intended to work with Gerstenberg’s Polaron pump, Polaron pin mixer forming part of a crystallization line and is designed for a working pressure of up to 120 bar depending on product and capacity.

Danish Food Tech Group

Gerstenberg Services offers equipment for production of margarine, shortening, ghee and related products within the yellow fats and edible oils industry as well as spare parts for margarine production, including SSHE scrapers, process cylinders for Perfector SSHEs, and water seals.

Mette Nielsen, office manager, Gerstenberg Services, added: “The products made on our equipment are used by industrial bakeries and bakery shops world-wide, and some of the product types are used in other parts of the food industry for example, in the confectionery industry.”

The company is one of seven exhibiting under the Pavilion of Denmark at Interpack, in Dusseldorf, Germany, (May 4-10), organized by the Danish Food Tech Group.

The others are the Danish Meat Research Institute; Detectronic; HSA Systems; Lachenmeier; Limitech and PanPac Engineering.

PanPac Engineering

PanPac Engineering is introducing a newly patented system for robot operated handling of big bags at the show.Big bag filling stations are used to fill standard big bags with bulk materials such as powders, grains and granules. Typically, an operator manually attaches the bag on the loading spout before the material pours down the spout and into the bag.

Our robotic system uses a loading spout with various lengths allowing us to reduce the height of the filling machines with 1.5 metres. This means food manufacturers do not have to build a new filling station or reconstruct to make it fit​,” said Morten Nysted, MD, PanPac Engineering.

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