The heating jacket is placed on the bottom and side walls of the vat, ensuring an even, rapid and controlled heat transfer. By controlling the heat transfer into the cheese curd we also control the speed of syneresis. This makes it possible to determine the exact moisture content in the final product.
Ultra Clean consists of a sterile air preparation system outside the vat. In the vat itself, there is an over and under-pressure valve and a safe manhole. Sterile air is pumped into the vat, creating a cushion of overpressure. This prevents non-sterile air from outside entering the unit if the manhole is opened.
Extruded inlet design
In a traditional vat design, the welded connections are perpendicular to the inner jacket wall. As the vat heats and cools over time, it expands and contracts, leading to the risk of cracks in the weld. In this unit, all the connections leading from the inner jacket wall (to the CIP, water, manhole whey discharge etc…) are extruded to create a smooth steel arc. This prevent cracks caused by thermal stress.
Towards the end of the emptying process, a pressure transmitter at the bottom of the vat sends a signal to tip the vat and get the last curds out. This ensures that no product remains in the vat, reducing waste.
Indented back wall
The back wall of the vat is designed with indents at regular intervals. This means that when the longitudinal cut is made in the curd, the harp can continue cutting to the very edge of the coagulated curd mass. This means there is no ‘uncut’ curd left, thereby reducing waste.