If you are wanting to double distil the spirit you have collected from your Air Still, we recommend topping up to the 4 L (1.1 US Gal) max line with water.
Put the 700 ml (23.7 US fl oz) of alcohol you've collected from the first run, back into the boiler and top up to the 4 L (1.1 US Gal) max line with water.
Due to it being smaller in size, people most often will do this with a larger 25 L (6.6 US Gal) batch but can be used on any size.
Simply run through the first 'stripping' run collecting almost everything (or until it slows down to the point it seems done. Combine these runs (if more than one) and dilute down to about 30% ABV.
- If you are doing a sugar wash then run this next 'spirit' run as per the manual but the collection rates will differ due to the higher ABV - a good idea is to check the ABV regularly and stop when it gets to about 10% abv running off the Air Still.
- If doing a whiskey or rum type wash then follow these directions;
- Run this back through the Air Still and this time collect your output in small numbered jars - about 100ml (3.4 US fl oz) each, this is called a 'spirit' run and doing your cuts.
- Once this run is complete - you can measure the ABV in the jars to check
- Once it is down to 10-15% ABV stop - cover the jars with a tea-towel or similar and let it breathe for 24 hours before lining up all the jars and then starting from the middle jar, smell it and compare it to both the first and last jar.
- You will soon work out which of the jars you will use for your final spirit, and those you will save to re-run in a future run. Typically you will not use the first and last couple of jars.