Ohmic heating

Ohmic heating is an advanced thermal treatment in which food acts as an electrical resistance, and is thus heated by conducting electricity through it.

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Ohmic heating

Alflow sells customised heating systems for Ohmic heating for sanitary applications. Explore our various Ohmic systems on this page.

Ohmic heating: efficient, accurate and gentle heating

Ohmic heating is an advanced thermal treatment in which food acts as an electrical resistance, and is thus heated by conducting electricity through it. Electrical energy generates to heat, resulting in rapid and uniform heating.

Ohmic heating is also called electric resistance heating, Joule heating or electric heating and can be used in a wide range of applications in the food industry. Ohmic heating can be used, e.g., for heating liquid foods that contain large particles and other heat-sensitive liquids, as well as for treating proteinaceous foods that tend to denature and coagulate when heat-treated.

For example, ohmic heating is suitable for:

  • Soups
  • Stews
  • Sliced fruit in syrup
  • Sauces
  • Cream cheese
  • Juice
  • Liquid eggs
  • Etc.

There are several advantages of ohmic heating over traditional heating with hot water and steam. As there are no hot surfaces that the product can burn on, gentle and uniform heating is achieved.

In addition, ohmic heating provides short heating times and a homogeneous temperature throughout the product, even with particles.

Another advantage is an extremely precise temperature control – even with varying flow. This is highly effective and efficient.

Heat exchangers with long-lasting solution

Do you work in the food industry and need an efficient and gentle way to heat your product? Then a system for Ohmic heating from our selection will definitely be relevant for you.

For demanding tasks, it is important that your equipment is completely in order. Therefore, all Alflow systems are type approved and produced in appropriate materials. In addition, they live up to all requirements in terms of use, hygiene, environment and serviceability.

At the same time, this means that our systems are easy to service. You can have your Ohmic heating system delivered with full documentation. For example, certificates such as:

  • FDA
  • 1935/2004
  • EN10204-3.1
  • 10/2011

At Alflow, we also want to supply the best systems on the market. This can be seen, e.g., by the fact that our models are extremely durable, as they are produced in the most suitable material in terms of application possibilities.

By purchasing an Ohmic heating system from Alflow, you get a long-term sustainable solution.

Ohmic heating can be used to heat liquid foods that contain large particles, such as soups, stews, sliced fruit in syrup, sauces and other heat-sensitive liquids.

The technology is useful for treating proteinaceous foods that tend to denature and coagulate when heat treated. For example, liquid eggs can be heated ohmically for a fraction of a second without coagulating. Juice can be processed to inactivate enzymes without affecting the taste.

Other possible uses of ohmic heating include blanching, thawing, fermentation, peeling, dehydration and extraction. In Denmark, ohmic heating is used in the production of dairy products, including cream cheese. A number of facilities around the world produce e.g. soups and fruit. In the USA, ohmic heating has been used to produce a product with large particles and low acidity, as well as pasteurised liquid eggs. In general, any product can be analysed for the possibility of using ohmic heating.

Your personal and professional partner

Alflow is a recognised and serious supplier of high-quality products from reputable brands. Do you therefore need guidance or professional advice in relation to materials, qualities, flow or components? Then we are always available so that together we can find the best solution for your task.

We wish to be updated on the latest news and developments, and that you get the right equipment for the job. That way, you are better assured of accurate and competent advice each time we are in dialogue.

Maybe you need a tailor-made solution for your business? Or do you need a new product on the market that we can provide? Together with our reputable suppliers, we work to be at the forefront of the industry.

Contact us if you need help, advice or want to find out more about our products and services.

Contact us for Ohmic heating, heat exchangers and other flow products

In addition to our professional Ohmic heating systems, we also have a wide range of other flow products for both sanitary and industrial applications. This includes valves, pumps, mixers and tank equipment in plastic, stainless steel and other variants.

Here, of course, there are also great demands on reliability and tightness. Common to all of them is to ensure you long-term operation thanks to less need for maintenance and where downtime is critical. Therefore, we are constantly improving our quality system and processes to ensure that we comply with all requirements and expectations of our customers. It gives you not only financial benefits but also better quality in business.

As a B2B company, we at Alflow strive to be able to deliver the absolute best products within flow equipment on the market. And with more than 20 years of experience behind us, we offer a wide range of knowledge in the pharmaceutical industry, the chemical industry and the food industry.

Are you interested in finding out more about Ohmic heating or some of our other products? Contact us via our easy contact form here. Then we will respond as soon as possible and find the best match for your application.