1. Using pulverized carbon, which is sludge in the alcohol

2. Filtering the alcohol through granulated activated carbon
 

 

Pulverized activated carbon

Pulverized activated carbon is not 100% effective in purification of alcohol. If you want a really pure alcohol, you must use a tube filled with granulated activated carbon. But it is helpful to pre-treat the alcohol with pulverized activated carbon before ordinary purification. It is done as follows:
 

1. Mix 4 grams pulverized carbon per liter of alcohol.

2. Pour straight into the alcohol.

3. Let it stand at least 24 hours.

NOTE: During this time, the mixture should be shaken at least four times.

4. Let the mixture clear for 24 hours or more, during which time the sediment sinks to the bottom and the alcohol clears.

5. Now siphon off the alcohol: the sediment is filtered.

6. Filter the alcohol in the usual way in a pipe filled with granulated activated carbon. Since the alcohol is already somewhat purified, the granules can work more easily.