Filtration (Day 110 - 115)
Now that your wine has had a chance to settle down and become fairly stable again it’s time to make your last ditch effort to make it as clear as you can. Filtration is another optional step, however, if you’re out to make a brilliantly clear wine this step is highly recommended.
Filters can be picked up at your local wine making store for between $50 - $200 for a small home production version. They can cost thousands of dollars for industrial scale models. (So, for now stick to something small).
This step is pretty self explanatory once you have the filter all set up. The most important things to note here is to make sure everything is very clean and sterile. That last thing you want at this point is to contaminate your wine after you have worked so hard on it. As well, try to minimize the wine coming in contact with the air. Oxidation can also throw off your wine so keep it to a minimum.
You will be filtering your wine from one carboy to a new clean sanitized carboy. The wine should be brilliantly clear at this point. If there is space at the top of the carboy make sure you top it up. You can now proceed to the next phase.