Pasteurisation is a vital process and it is required for some specific product such as juices, milk, sauces and syrups since it eliminates microorganisms and improve safety, freshness and shelf-life. There are different types of pasteurisation and heat treatment, for example: • Tubular pasteuriser • Plate Pasteuriser • Free Flow Pasteuriser • Flash Pasteuriser • Steriliser and UHT treatment • HTST ("High Temperature Short Time") • LTLT ("Low Temperature Long Time") • Pasteuriser with deaerator • Pasteurisation with homogeniser Prismatech pasteurisers provides a gentle delicate treatment of the product in order to preserve its characteristics. This is why, direct steam is never used for heating or pasteurisation: pasteurisation is done with hot water which is heated with a steam. Prismatech pasteurisation plants are suitable for either 'hot fill' or 'cold fill' applications. There are mainly two categories of pasteurisers depending on the type of product, whether the liquid to be processed is clear without pieces or viscous/with filaments.