Pick Sanitary Direct Steam Injection (Steam Heater / Cooker)
Sanitary direct steam injection water heating (DSI) systems are used for heating, in-line product cooking, or sterilising food products/slurry. Culinary stream is directly injected in products through hundreds of small orifices to get instant and precise temperature control. The mixing chamber cross-sectional flow volume is nearly the same as the piping, allowing for smooth flow through the system.
Pick Sanitary Steam Heaters and Jet Cookers carry the 3A symbol which indicates that the heater meets all the stringent requirements for any food or dairy use and is independently verified by 3A.
Why Pick Sanitary DSI?
- The Pick Sanitary DSI systems have a minimal footprint and the mixing chamber is small and easy to inspect or clean. With just three quick release clamps you can remove the device from the process line. The systems are available in a wide range of sizes capable of handling product capacity from 240 L/hr to +100,000 L/hr. Furthermore, it requires low capital investment – potentially half of other methods such as indirect heat exchangers. They can be used in food and pharmaceutical industries where the process liquid or slurry contains bite size pieces.
- Other advantages:
- Energy saving
- Minimal pressure drops
- Quiet, efficient operation
- Complete mixing in heater body
- Considerations:
- Steam needs to be culinary
- Due to condensation of steam, moisture may be added to the products but it can also be removed using an atmospheric or vacuum flash chamber depending on product specification.
Common Applications Include:
- Dairy Products
- Process/Product Water
- Starch Cooking
- Pasteurization
- In-Line Product Cooking
- CIP (Sanitary)
- Baby Food
- Gelatine
- Candy
- Milk
Ultra-High Temperature Pasteurisation:
Pick DSI Heaters are used for pasteurisation of milk or other dairy products to extend the shelf life of the product. Sanitary steam injection heaters are great replacements for the conventional methods of UHT using plate & frame heat exchangers or tubular heat exchangers. Pick’s heater design avoids flavour deterioration, over-cooking, or browning of the finished product.
Some examples of food products processed under UHT:
- Liquids such as milk, juices, yogurts, cream, and salad dressing.
- Foods with small bite size pieces like baby food, soups, sauces, and stews.
- Soy-based products to inactivate bacteria and reduce off flavours.
Nitrogen Gas Injection:
Hygiene is essential for food products from start to finish. Introducing Pick’s Gas injection system for both manufacturing and packaging!
Manufacturing – Nitrogen gas injection is used not only to extend the shelf life but also increase product volume and improve texture. Nitrogen gas directly injected to food must be precise to avoid off flavours.
Packaging – Gas injectors are used to help prevent rancidity in food products by displacing dissolved oxygen. Modified atmospheric packaging is used to keep food fresh but it needs to be perfectly balanced. Depending on product specification, Nitrogen or Oxygen gas can be injected.
