The wort boiling takes place either inside the wort kettle (internal boiler) or externally with an external boiler, which can be designed as a tube bundle or plate heat exchanger. The cooking times per brew range between 50 and 75 minutes. Objectives of wort boiling:
- Adjusting the desired wort concentration
- Destruction of malt enzymes or fixation of wort composition
- Sterilization of the wort
- Protein coagulation
- Hop isomerization
- Aroma formation
- Evaporation of undesirable aroma substances
For quality and efficiency reasons, the wort concentration in the brewhouse must be continuously monitored.
LiquiSonic® Sound velocity measurement in the wort boiler
Application
The LiquiSonic® Plato system determines the original gravity at different stages of the brewing process. In the wort kettle, the LiquiSonic® Plato system is used for:
- Control of the boiling process
- Determination of the concentration of the cast wort
The immersion sensor is made entirely of stainless steel and operates maintenance-free, drift-free, and long-term stable due to its robust design. The integrated LiquiSonic® high-performance technology enables stable measurement even with gas bubble contents. Through the LiquiSonic® controller an automatic product changeover is possible. An internal limit value monitoring signals exceedances and shortfalls and sends real-time information via analog or digital outputs, serial interfaces, or fieldbus (Profibus DP, Modbus) to the process control system.
Installation
In the internal boiler, the sensor is mounted directly in the wort kettle. The installation length is variable and can be up to 3 m. A special design of the sensor minimizes the influence of deposits. Additionally, the sensor in the internal boiler can be equipped with a cleaning head to prevent crusting from foam. When used in an external boiler, the sensor is mounted directly in the circulation line between the wort pump and the heat exchanger. During the installation of the LiquiSonic® Sensors no bypass is necessary and dead spaces are avoided.
The LiquiSonic® Controller 30 can be connected to up to 4 sensors. In addition, up to 99 types of beer can be stored with the corresponding calculation models. This makes it possible to monitor several measuring points simultaneously.
Konzentrationsbereich: 0 °P bis 20 °P | Temperaturbereich: 40 °C bis 120 °C
Customer benefit
LiquiSonic®reduces time-consuming laboratory measurements and makes manual sampling unnecessary:
- Time required: 2 hours per day
By continuously determining the original wort, the cooking time can be shortened.
LiquiSonic® Plato ensures precise analysis of the original wort concentration with permanent data recording. The system is used both in internal and external boilers. No expensive bypass solutions are necessary.
