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01.06.2022 - News

Innovative washing technology for salad leaves, herbs and leafy vegetables

GEWA AF and GEWA XL: for the gentle and economical washing of large quantities: With the GEWA AF and the GEWA XL, KRONEN is bringing two high-performance washing machines and new hygiene standards to the market. The newly developed GEWA AF pre-washing machine uses a new and unique “Active Flume” washing system. It was specially developed to wash floating, leafy products, to submerge light, delicate products without mechanical stress, and to handle production peaks.

Within the scope of a research project, comprehensive tests were conducted, and the new washing system was examined in detail, including operational testing at the production facility of a company in Spain. The innovative washing solution was then officially launched at the Fruit Logistica and Anuga FoodTec trade shows.

Compared to helical washing machines, the water-to-product ratio of the GEWA AF is only four liters of water for one liter of product, and this 4-to-1 ratio is perfect for pre-washing. The machine is able to remove cell sap, sand, and soil. The standard version of the GEWA AF requires a total of 1,400 liters of water. It washes baby leaf lettuce at a capacity of 400 to 1,500 kg per hour. The GEWA AF can process iceberg lettuce at a rate of up to 3,000 kg per hour and baby spinach at up to 1,000 kg per hour. Read more

The further-developed GEWA XL is equipped with a helical wash system especially for large processing capacities. After pre-washing, a helical washing machine like the GEWA XL, which uses a spiral-shaped rotation process and 2,600 liters of water, produces optimum washing results in a second stage. With the GEWA XL, baby leaf lettuce, for example, can be washed at a rate of up to 1,500 kg per hourIceberg lettuce, on the other hand, is gently processed at a rate of up to 5,000 kg per hourRead more

The GEWA AF and GEWA XL are both optimized for production lines with high capacities and hygiene standards. They also guarantee reduced water consumption.
The perfectly coordinated washing machines have already been in operation in two production lines used by a manufacturer of fresh produce in England since the start of 2022.