03 Machines and equipment for the production of confectionery (Chocolate confectionery, sugar confectionary, gum)
03.02 Single machines/equipment for the production of confectionery (Chocolate confectionery, sugar confectionary, gum)
03.02.72 Sterilizing equipment for cocoa, nuts, almonds and others
Sterilizing equipment for cocoa, nuts, almonds and others
Product category: Pasteurizing and sterilizing machines
Pasteurization of products with low water activity
Destruction of micro-organisms in dry products with low water activities is a lot harder than in liquid media. Several reasons are postulated by scientists. The most relevant are:
When only a small amount of water is available (low water activity), vibration of water molecules is limited. Therefore only a small amount of proteins are destroyed (denaturated) when heated. Micro-organisms in dry products have adapted themselves to stresses such as thermal, hydric and ionic, applied during the pasteurization treatment. This means they are more resistent and harder to destroy.
For the pasteurization of dry products this means that pasteurizing with dry air (or oil) requires a longer time rate than for wet products.
The Log 5 AwCP pasteurizer and Lehmann Continuous Roasters are part of a new process line of the RDW Group. Lehmann Contiuous Roasters fit perfectly in our automated production line for the processing of all types of nuts and seeds.
With the Lehmann Contiuous Roaster, roasting at low temperature safeguards the quality and excellent taste of your products.
Log5 offers nut pasteurization, sterilization and roasting systems that reach unprecedented levels of log reduction. The AwCP system is suitable for the pasteurization of spice, herb and vegetable, seed, grain and flour. A minimum 5 log reduction is guaranteed.