The preparation of a wide range of food products generates large amounts of foam. This is particularly problematic in the washing of vegetables including peas, carrots, chips, crisps, sugar beet and various other root vegetables. Margins in the food industry have historically been very tight and the cost the cost of antifoam can be a considerable issue for producers. Detecting foam and controlling the antifoam addition with an automatic system can significantly reduce the cost of antifoam use and has proven to be of great benefit to Hycontrol customers including Pinguin Foods. This also helps to increase the efficiency of the process by eliminating downtime due to cleanup.
The image below (left) shows a typical food washing application where excessive foam is produced, often resulting in spillages (centre). The image on the right shows the same application with a Hycontrol foam control system installed, controlling the application to keep foam at the right level.
The highly versatile Suresense⁺ foam control system from Hycontrol has been specifically developed for measuring the thickness of foam in a process and detecting foam-liquid interfaces. The patented technology behind these systems originated from detailed research into foam control during pharmaceutical fermentation. Hycontrol point out that the special measuring sensors and control equipment have been purpose-designed specifically for foam control and are not modified versions of existing level sensors.