When it comes to the question of whether or not to charcoal filter moonshine, the answer really depends on the type of still you are using and your desired outcome. In general, carbon filtering is not necessary for pot stilling because you want to preserve the flavors and characteristics of the grains used. However, if you are using a reflux still and aiming for a high level of purity, the need for charcoal filtering is minimal.
Pot stilling is a traditional method of distillation that is often used for producing spirits such as whiskey or rum. The process involves heating a fermented grain mash in a pot still and collecting the vapors that are produced. The pot still allows for the retention of flavors and impurities, resulting in a more flavorful and complex spirit. In this case, charcoal filtering would actually strip away some of these desirable flavors, so it is not recommended.
On the other hand, reflux stills are designed to produce a high-proof and clean spirit by using a series of plates or packing materials to create multiple distillation stages. This results in a higher level of purity compared to pot stilling. However, even with a reflux still, the need for charcoal filtering is debatable. When operated correctly, a reflux still can produce a spirit that is already highly purified and free from impurities.
In terms of aging moonshine, it is generally recommended to age the spirit at around 50-60% ABV (alcohol by volume). This is the optimal range for aging because higher proof spirits tend to extract more flavors from the wood barrels, while lower proof spirits may not have enough alcohol content to effectively extract flavors. Aging at a higher proof also helps to prevent the growth of bacteria or spoilage organisms during the aging process.
In my personal experience as a brewer and distiller, I have found that the use of charcoal filtering is not necessary for pot stilling or even for most reflux stills. The key to producing a high-quality moonshine lies in the proper operation of the still and the selection of high-quality ingredients. By using quality grains and maintaining precise control over the distillation process, you can achieve a spirit that is already clean and pure without the need for additional filtration.
Of course, there may be situations where a distiller may choose to charcoal filter their moonshine. This could be for personal preference or to achieve a specific flavor profile. Some distillers may also choose to filter their moonshine to remove any residual impurities or off-flavors that may have been introduced during the distillation process. Ultimately, the decision to charcoal filter moonshine is a matter of personal preference and the desired outcome.