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Polyclar PVPP (beer clarifier/chill haze reducer)


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Polyclar (PVPP) is a finely ground (granular)  —  plastic material that works in relatively the same way as isinglass and gelatin with one important difference: it reacts more with the polyphenol part of the protein-polyphenol haze-forming complex so it does not seriously impede the foam quality of the beer. Polyclar’s electrostatic charge attracts the polyphenols in the beer, thus eliminating one half of the haze-forming equation. It settles out quickly and forms a packed sediment that is easily left behind when the beer is racked.

Another interesting by-product of Polyclar’s fining action is that it can remove some oxidative browning; that is, it can lighten the color as well as clear the beer.

The difficulty with Polyclar seems to arise from the discrepancy among the recommended dosage levels. I have seen everything from 2 teaspoons to ¼ cup per 5 gallons in the literature. Most recommend amounts around 2 tablespoon. To start, I would stick to 2 tablespoons and adjust the dosage from there once you’ve dialed into how it works with your technique and system. Lighter beers (light lagers, for example) may need a higher dosage to get the desired clarity.

To use, simply make a slurry out of the Polyclar and a little preboiled, sterile water and add it directly to the green beer after the majority of the yeast crop has settled out. Mix it in thoroughly and let it settle for a few days.


sold in 100gm vacuum sealed bags