Beer Filter Instructions

This article will describe the use of a beer filter kit, using either gravity feed or by forcing the brew through the filter under CO2 pressure (keg to keg filtering). Keg to Keg filtering is the recommended method.

Keg to Keg Filtering

The keg to keg filtering method should be used once your brew has finsihed fermenting. In addition, if poosible, you should chill your brew for a couple of days prior to filtering. This causes a lot of sediment to settle out of the brew and will increase your filter's life.

1. Sanitise all parts of the filter system, including all hoses and the receiving keg.
2. Assemble the filter and connect between your two kegs using food grade beer hosing.
   Tip: If you connect the filter "out" line to the liquid post of the recieving keg, the brew will be returned to the bottom of the keg which will help to reduce oxidation of your brew.
3. Pass beer through the filter using the lowest pressure possible. This will take a little longer than using a higher pressure, but it will avoid damage to the filter cartridge. Start at approx 10kpa and increase if the flow stops. The range 10-40kpa is ideal.
   Note: Using a pressure that is too high may force particles through the filter membrane resulting in damage to the cartridge and cloudy beer.

Gravity Filtering

If you don't have a keg setup, you can still get good results by using gravity feed to filter your home brew beer. Just follow these suggestions.

1. Sanitise all parts of the filter system, including all hoses and the receiving bucket.
2. Assemble the filter.
3. Connect the filter kit between your fermenter full of unfiltered beer and the receiving vessel using food grade beer hosing. Ensure that the tap of the fermenter containing the unfiltered beer is sitting higher than the beer filter, and that the beer filter is sitting stable and higher than the receiving vessel.
4. Allow to flow through the filter using gravity.

Note: This method is not recommended for excessively cloudy beers as the filter is likely to clog and you will not be able to increase the beer pressure to ensure continuous flow.

Other points on filtering

The filter kits that we supply come with a 1 micron absolute cartridge. This means it will remove most yeast resulting in a very bright beer. Chill haze (beer that becomes cloudy when chilled) is very common but not removed by the filter. To remove chill haze, Polyclar should be added to your beer prior to filtering.

To clean the filter, disassemble the kit and wash all components under warm water to remove any loose debris. Dilute either napisan or sodium percarbonate in warm water and fill the filter housing with the solution. Soak the filter in the solution for approximately 24 hours. Inspect the filter and ensure it is clean. If it isn't, wash under warm water and soak in napisan again. It is important to ensure that the filter dries completely to avoid it getting mouldy.

Provided you look after your filter cartridge correctly it will last you for many brews. Once you stop getting the desired results, replacement filter cartridges are available from us.