Areas of application for BTF-L layer dryers BTF-L dryers are suitable for products with a medium or low specific water evaporation. Products that slowly release water need less air to dry but may need more time to dry. The compact design allows high belt areas and thus high dwell times to be realised. The ventilation intensity is lower compared to a stage dryer. Typical applications for the BTF-L dryer are nuts, cereals, extrudates as well as fruit, berries and vegetables. Areas of application for BTF - S stage dryers BTF – S dryers are suitable for products with a high water evaporation. Products that release water quickly require a lot of air for drying. Due to the large installation space, the necessary air quantities can be led evenly through the product. Typical applications for the BTF - S dryers are leafy crops: Herbs, grasses (sea grass, wheat grass) and vegetables: onions.