Pasteurization is a heat treatment with the purpose of improving the microbiological stability of the beverage in order to prolong its shelf life. While reducing the number of harmful microorganisms, uniform and gentle treatment is required to maintain the original taste and appearance of the beverage.
Designed for safe and reliable product treatment, DENWEL provides a fully automated solution ensuring consistent pasteurization quality.
The cold beer is entering the regenerative zone of the plate heat exchanger and is gently pre-heated by the already pasteurized product. In the heating zone, the beer is then heated up to the request pasteurization temperature and held in the holding tube during the requested pasteurization time. The pasteurized beer is then cooled down in the regenerative zone, and if required cooled in the cooling zone to the requested filling temperature. The regenerative zone counts up to 95% of the heating and cooling demand and makes the system run at most economical costs.
A frequency controlled pump at the inlet of the heat exchangers regulates the flow, while a second pump between the regenerative and the heating zone raises the pressure up to 14 bar in order to keep the CO2 into solution. A backpressure valve at the outlet of the heat exchanger and a pressurized buffer tank make sure that constant pressure is maintained in the system and no CO2 is lost.
The unit comes assembled on a compact frame, tested to be rapidly put into operation. Proven components guarantee reliability and extended lifetime.
- Gentle and uniform treatment
- Exact control of Pasteurization Units (PU)
- Heat regeneration up to 95%
- Broad capacity range
- Sanitary design
- PLC controlled