Some major breweries and many micro breweries use filter presses, pressure leaf and candle filters to separate wort from mash and to polish finished beer. Separating wort from mash is a large demanding operation that requires tight filtration, high flow rates and good cake release. Shrinking can also be a problem because of the elevated temperatures of the process. Polish filtration is always a challenge for some of the same demands - high flow rates, tight filtration of very fine particles and good cake release.
Most major breweries also have on site boilers to generate the large amounts of steam needed to brew beer. Depending on the fuel source, the filter bags used in the required baghouses must resist blinding, operate at high temperatures, and provide efficient dust filtration.
Menardi has been a major supplier to the brewing industry for many years. Our fabric filter press cloths are a standard in major breweries as well as many micro breweries. Menardi also supplies fabric covers for candle filters and pressure leaves.
Menardi pioneered the woven fiberglass filter bags that are used extensively in industrial boiler baghouses. Many users have stepped up to Menardi's Mikrotex® , a PTFE membrane laminated onto the woven fiberglass substrate. The membrane increases filtration efficiency, while lowering pressure drops across the filter and typically doubles the bag life.
Common problems Menardi air filtration products solve:
- High differential pressures
- Premature bag failure
- Airflow restrictions
Menardi air filtration product solutions:
- Mikrotex® expanded PTFE membrane laminate
- Chemflex® acid resistance finish
- Tuflex® PTFE dispersion finish
- Detect-A-Leak™ tracer compound
- Baghouse Services filter bag installation and baghouse maintenance
- Newer generation mono-filament/multi-filament filtration fabrics
Example Dust Collection Application
A major brewery traditionally used spun polyester cloth to separate wort from mash.. The spun polyester was an excellent filter, but it plugged quickly and had to be replaced frequently. As labor and downtime became more and more of an issue, the brewer wanted to find a fabric that would give him the same filtration performance with a much longer filter life. Menardi worked with the brewer and our fabric weaver to develop a monofilament/multifilament polypropylene media that filtered as well as the spun polyester and lasted twice as long.