Wort sterilization CWS

Wort sterilization

The Wort Sterilization System (CWS) is used for the production of cold sterile beer wort. The beer wort is heated up to 110 °C to ensure absolute sterility. The temperature is kept for a specified time while the wort is flowing through the holding pipe. Then the wort is cooled down regeneratively and further cooled with glycol or ammonia.

The process is well established in the brewing industry for providing sterile beer wort for the reliable and continuous operation of the yeast propagation. The system is characterized by exact control of sterilization temperature, high operational reliability and high heat recuperation up to 95%.

Advantages and functions

Production of absolutely sterile beer wort
Exact control of programmed sterilization temperature
High heat recuperation up to 95%
Hygienic design, full CIP capability
Easy operation, low maintenance effort, long service life
Fully automatic operation with standard PLC and touch panel
Optional integration in process control system and remote maintenance
Individually dimensioned and designed for each specific application
Equipment and components according to customer specification
Wort sterilization as compact tubular-frame system (skid mounted)

Technical Description

The wort is gently heated up to the sterilization temperature regeneratively and then via steam. Then it is flowing through a holding pipe to keep the sterilization temperature for a specified time and to reach the required germ reduction. After this the wort is cooled down regeneratively and further cooled with glycol or ammonia.

Due to the second booster pump, the pressure in the sterilized wort is always higher than the pressure in the non-sterilized wort in order to avoid contamination due to leakage.

The unit can be controlled by a local PLC with a touch panel or by a process control system. Designed for high hygienic standards, all common cleaning agents in the brewing and beverage industry can be used for CIP cleaning.