VESTAMID® compounds are delivered dry in moisture-proof bags or in octabins. Therefore, further drying before processing is not required. The compounds will absorb moisture from the atmosphere. The amount absorbed depends on the ambient conditions of the area where they are used. During processing, a dehumidifying hopper dryer is therefore recommended. The temperature may be set at 60 to 80°C. Granules from opened or damaged bags must be dried in a desiccant type dryer for a minimum of 2 hours at 120 to 125°C for VESTAMID® at 90 to 100°C, or on trays in layers not exceeding 2 to 3 cm thickness at a tempe- rature of 120°C for VESTODUR® and 90 to 100 °C for VESTAMID® in a circulating air oven for about 5 hours. The moisture content must not exceed 0.05 % for or 0.10 % for VESTAMID®.