Brewery

Water is a fundamental component of the brewing process, and effective water treatment is crucial for producing consistently high-quality beer while improving process efficiency. Start by removing sediment and larger particles, and then use fine filtration to further reduce the particle content according to the type of beer being produced. Regularly monitor raw water quality, differential pressure, and filter condition to ensure that each filtration stage operates reliably and efficiently.

Choose the Hengst L-PB-P-A for pre-filtration and the L-PP-P-A for fine filtration.

During the production process, compressed air comes into direct contact with the product. Treat it as an ingredient and treat it in accordance with the required class under ISO 8573-1. The installation environment affects the levels of particles, moisture, oil, and odors. Even oil-free compressors require filtration. Combine Particle filters, adsorption dryers, gas adsorption filter elements, and sterile filter elements to provide the required compressed air quality at the point of use. An optimized compressed air treatment system can reduce energy consumption and maintenance costs. Furthermore, it has a direct impact on product safety.

Configure your treatment line with Hengst filters— G-PC-C, G-PC-M, G-PC-F, G-G, and G-P-02 —as well as our Adsorption dryers .

Yeast propagation is a particularly sensitive step in the brewing process. Contaminants can adversely affect fermentation as well as the quality, flavor, and consistency of the beer. Use sterile air that meets at least ISO 8573-1 Class 2, with Class 1 being preferred. Additionally, protect the tank vent and monitor filter integrity throughout the entire process.

Protect your yeast propagation tank with the Hengst sterile vent filter GV-P-02. For compressed air treatment, take a look at our solutions at Compressed Air Treatment.

Wort aeration is one of the most critical steps in the brewing process. During wort aeration, sterile air is introduced, which becomes part of a highly sensitive process. Microbiological contamination can adversely affect beer quality, flavor, texture, and subsequent filterability. Use sterile air that meets at least ISO 8573-1 Class 2, preferably Class 1. Check the air quality and filter integrity at regular intervals.

Support hygienic wort aeration by using the Hengst G-P-02 Filters.

Crossflow filtration removes unwanted particles while reducing the need for filter aids. Pay special attention to contamination and take the thermal and mechanical stress on the beer into account when making filtration decisions. Excessive stress can alter the beer’s color and flavor.

Discover the Hengst L-PES-P-A Filter Cartridge for protective filtration, or ask about hollow-fiber modules.

Diatomaceous earth filtration is a traditional method suitable for coarse, fine, and sterile filtration stages. The process requires careful pre-coating and continuous dosing. In addition, diatomaceous earth filtration involves significant material and disposal costs. Protecting open-handling steps from external contamination is just as critical as monitoring the downstream filtration for residual diatomaceous earth particles. Furthermore, handling diatomaceous earth involves high dust exposure and can pose a health risk to personnel. 

Filtration using filter cartridges is a viable alternative to diatomaceous earth filtration. It is a closed, flexible system. The process requires neither pre-coating nor continuous dosing, as is necessary with diatomaceous earth filtration. Additional filtration stages can be integrated if requirements change.

For diatomaceous earth filtration, a suitable Hengst L-PP-P-A Trap Filter should be used to ensure reliable particle retention in the downstream filtration stage.

Filtration using filter cartridges allows you to combine coarse, medium, and fine filtration as well as cold sterilization in a flexible, closed system. The filter cartridges are easy to handle and can be replaced quickly. The process requires neither a pre-coating nor continuous dosing, as is necessary with diatomaceous earth. Additional stages can be easily integrated if requirements change. A closed design also helps to limit oxygen enrichment.

Configure your filtration stages using the Hengst series L-PP-P-A and L-PES-P-A.

The clarification and protection filtration removes PVPP residues, yeast, and diatomaceous earth before the beer proceeds to the next process step. The closed system with filter cartridges ensures minimal oxygen enrichment and can be expanded to meet changing requirements. The quick replacement of filter cartridges simplifies operation. Pre-coating or the continuous dosing of filter aids, as is the case with diatomaceous earth filtration, is not required. Select the filter medium based on the particles and process conditions.

Find the right protective filter at Hengst L-PES-P-A or L-PP-P-A Trap.

During carbonation, gas is introduced directly into the beer, making gas quality a critical process parameter. Ensure that the gas meets food-grade requirements and monitor for relevant contaminants before it comes into contact with the product. Depending on the gas source, process design, and environmental conditions, the required setup may include one or more filtration stages. If necessary, place the sterile filtration system close to the point of use.

Prepare your carbonation gas using the Hengst G-P-02 Sterile Gas Filter immediately before the point of contact.

Cold sterilization offers an alternative to flash pasteurization and prevents the beer from being exposed to additional heat. This supports a gentle processing method that preserves color, flavor, and the perception of carbonation while reducing processing costs. Effective filtration in the preceding process helps reduce the particle load on the sterile membrane. Monitor pressure, flow rate, and filter integrity to maintain stable operating conditions. An optimized filtration strategy can have a significant impact on filter lifespan and energy consumption. Use PES membranes for the final sterile stages to effectively retain microorganisms.

Use the Hengst L-PES-P-A for your cold sterilization process.

At the filling line, nitrogen and CO₂ may come into direct contact with the product. Treat both gases to the required food-grade quality in accordance with ISO 8573-1. For liquids, use sterile filtration to rinse bottles or cans, for high-pressure injection, and to clean the filling components. Adjust the number of filtration stages to suit the process and the environment.

Equip the filling line with the Hengst G-P-02 for gases and the L-PES-P-A for sterile water.

SIP and CIP rely on clean process media. Filter the steam for your SIP process to remove rust, particles, and other contaminants that could compromise equipment or hygienic conditions. Select the filter design based on the required steam quality (culinary or hygienic), temperature, and pressure. Water treatment for CIP may also require multiple stages, ranging from coarse filtration to sterile filtration.

Select Hengst ST-SS-S or ST-SS-P filters for steam and L-PES-P-A for sterile water.