Graver Cartridge Regeneration Procedures for Wine & Beer Applications

This document provides suggestions on extending the life of Graver filters used in wine, beer, and spirits filtration through regeneration procedures effective for organic and water-soluble contaminants. The forward flush procedure involves rinsing with pre-filtered water at specific pressures and temperatures, followed by optional chemical treatments. The reverse flush procedure is more effective but should be used cautiously with certain filters. Chemicals like peracetic acid, citric acid, caustic, hydrogen peroxide, and sodium hypochlorite can enhance regeneration. Proper storage of regenerated filters is crucial, whether wet or dry, to prevent microbial growth. Additional notes highlight the importance of pre-filtering water, using membrane products like Graver WaterTEC, and conducting integrity tests on filters before reuse.

• Forward flush procedure: Rinse with pre-filtered water at specific pressures and temperatures

• Reverse flush procedure: More effective but use cautiously with certain filters

• Chemicals for regeneration: Peracetic acid, citric acid, caustic, hydrogen peroxide, sodium hypochlorite

• Proper storage of filters: Wet storage with sanitizers or dry storage in clean bags

• Additional notes: Pre-filter water, use membrane products like Graver WaterTEC, conduct integrity tests before reuse.

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