De-Gassing
Your wine contains dissolved carbon dioxide, rather like an almost flat bottle of Cola. Getting rid of it is meant to aid clearing. Some people are quite obsessive about getting as much gas out as they can and use whisks or vacuum devices over a period of a couple of days. Other people simply donât bother at all. Search the forums, read up about it and make your own mind up. I just make a token attempt.
Put your (washed) hand over the neck of the jar and give the jar a gentle shake, ease your palm away and the wine will fizz. Cover again and give it a harder shake, release the fizz.
Stabilising
You may wish to sweeten your wine before you bottle it. If you do, then you must use potassium sorbate, sometimes labelled as âwine stabiliserâ, or the yeasties will start up again and you will have a stronger, but still dry wine, or your corks will pop or your bottles will burst. Use at the rate of half a teaspoonful to the gallon, it dissolves almost immediately but give it a minute or so and shake the jar again.
Clearing
You now have two options, your wine should clear naturally but that may take a few weeks, or you can speed things up with finings.
Over the centuries, people must have tried adding some weird and wonderful things to help clear their wine faster. Letâs face it, some of the products commercially available today might seem pretty weird.
Gelatine is derived from collagen in animal skin and bones.
Isinglass is another form of collagen derived from the swim bladders of fish.
Chitosan is derived from the shells of crabs and other marine crustaceans.
In short, vegetarians have got a problem, your options are patience or bentonite - a type of volcanic clay.
Many types of wine finings are available, some come in bottles, others come in sachets, some may require two components to be used within half an hour, or 24 hours. Read the labels and follow the instructions.
I use Vinclear, a one-shot isinglass finings which costs me £2.15 for a bottle which treats around 15-20 gallons. I add around 1 tablespoonful (15ml) to the gallon, give it a minute and then shake it again.