Beer production from the brewery to the bar room
Like all processes, beer making goes through a number of stages each requiring a different set of production tools. Xylem is able to supply all of this to breweries, from water treatment and filling to wastewater disposal.
There’s a lot going on in breweries, but whether it’s providing water for bottling, cleaning tanks, or disposing of wastewater, transporting liquids is necessary. Reliable, energy-efficient pumps are essential in breweries. If any of them need unscheduled service or even need to be replaced, this will cause problems throughout the brewing process.
First class quality must be the main ingredient in high quality beers. A large amount of water is also needed for heating and cooling as well as for the cleaning-in-place (CIP) process, although brewers have significantly reduced water consumption for these secondary processes.
Lowara’s borehole pumps lift water from great depths. A standard Lowara e-NSC water pump can deliver it to the wastewater treatment plant. Efficient hydraulics means the pump exceeds ErP2015 specifications. Gravel filters remove particulate matter from the well water and modern reverse osmosis technology aims to ensure consistent quality brewing water.
The Lowara e-SV multistage centrifugal pump, which can be used as a single pressure pump or as a booster, sends water through the pressure pipes. Cleaned and softened without the harmful use of chemicals, the water from the pump enters a UV disinfection system with Wedeco technology, another Xylem brand. Some breweries are already using the latest model, the Spektron UV disinfection system.
The flow guidance has been improved by the developers and since the UV output is always adjusted to water quality and flow through control, operating costs are particularly low. The water quality is monitored during and at the end of the cleaning process by online measurement technology from WTW, a company also owned by Xylem.
Retractable fittings for pH probes, which can be used preconfigured, facilitate the work here. And at the end of the fresh water treatment, the Multiline 1000 multi-parameter system offers a measurement of six parameters simultaneously, as happens in drinking water monitoring. WTW technology is also recommended for the brewery laboratory.
Step by step control
As part of a step-by-step control, a sample must be taken and analyzed after each step of the process, such as pumping from the fermenter to the storage cellar, and of course immediately before bottling. This guarantees the quality of each batch. The samples are then filtered and freed of carbon dioxide by heating, before determining the pH, alcohol content, must and many other values.
Pumping of the purified water from the brewhouse to the hot section of the brewery is done by a Lowara centrifugal pump. Several Xylem brand hygienic beer pumps, such as Jabsco’s centrifugal pumps, are used there. EHEDG certified units are essential in this production process. I
In addition, the pumps must not introduce oxygen into the process. Pumps suitable for CIP and SIP cleaning are the first choice in this hygienically demanding process. All components that come into contact with the product are made of stainless steel 1.4404. Even the high requirements of EC regulation 1935/2014 can be met by Jabsco.
Various Jabsco stainless steel centrifugal pumps are used during the boiling of the wort, for example to pump the mash into the filter tank and into the wort tank. A Hy-Line + type food grade rotary lobe pump can handle hop dosing as well as wort pitching. The pump series are modular to help find the right connection variant.
The wort reaches the vortex, in which the hop residues, coagulated proteins and other suspended matter are again separated via a centrifugal pump. Then it passes through the wort cooler before the yeasts have risen to relatively low temperatures. Smooth conveying is provided by the Hy-line + rotary lobe pump, whose low shear stress is designed for use with yeast. One of the Jabsco peristaltic pumps would also be suitable.
Breweries use Jabsco food grade rotary lobe pumps for delivery to the main fermentation tank. To pump the new beer, they use Jabsco mobile centrifugal pumps. After several weeks of storage, the beer is now filtered. If the brewer uses diatomaceous earth which is an extremely abrasive medium, Xylem recommends silicon carbide (SiC) slip ring seals in particularly mild centrifugal pumps.
Short Term Heat Treatment (STHT) preserves the portion of beer to be canned. Lowara multistage high pressure pumps generate the necessary pressures in the boiler circuit. Frequency controlled Jabso hygienic pumps are used here to extract beer as well as in the bottling plant. A Xylem rotary piston pump extracts high gas content products when used in conjunction with an upstream screw pre-stage. It can also be used for CIP return, saving a pump to the brewery.
The pumps of the Xylem range are used in bottle and barrel cleaning systems. Jabsco pneumatic diaphragm pumps provide detergents. Standard and high pressure pumps as well as multistage Lowara centrifugal pumps are also used there. In CIP applications, the energy-saving Lowara e-series centrifugal pumps with their IE3 motors are particularly practical.
The keg and bottle fillers are also equipped with Xylem technology. The tunnel pasteurizer with heat exchanger connected to the bottle filler is supplied with fresh water and circulating water at different temperatures via Lowara centrifugal pumps.
The wastewater treatment plant comes full circle. Flygt pumps are designed to pump sewage and rainwater. A ventilation system with Sanitaire aerators ensures a sufficient supply of oxygen, while infinitely variable Flygt submersible agitators support the biological process in the treatment by creating an additional horizontal flow in the pond.
The non-depositing and specially shaped propellers offer very high thrust performance with low power consumption, which means particularly high efficiency. A large number of WTW sensors for all wastewater parameters, as well as the WTW-IQ-Sensor-Net, guarantee a flawless monitoring process.
Please note that not all of these products are available in the UK and Ireland, but alternatives may be offered.