Distillation kits are often sold with keg-type tanks, which are barrels repurposed from breweries. These tanks are highly versatile, cost-effective, and practical. Since they were previously used for transporting beer, they are designed for easy cleaning, have compact dimensions, and are easily modifiable. Although they may have scratches and dents, these do not affect their functionality but significantly reduce the cost compared to new tanks. However, if you prefer a new, unused tank, contact us; we also offer brand-new kegs for an additional charge of approximately 1000 PLN net.
Each keg-type tank comes with a fitting, an opening used to mount the still using a convenient Tri-Clamp. To avoid dismantling the still, which is often already connected to water hoses and thermometers, you can choose an additional inlet for each kit—an extra entry at the top of the tank that facilitates filling without removing the still.
The diameter of this inlet depends on the type of mash you intend to cook. Thicker mashes are easier to pour through a larger opening. However, this does not affect cleaning, as the tanks are not cleaned mechanically (to avoid scratching the inside surface of the keg) but rather with water, pressurized water, or water with cleaning agents.
Keg tanks also feature a side drain at the bottom. When cooking fruit mashes with pits, a larger drain than 3/4" is useful for easier emptying, as pits like those from plums can cause blockages. Adding legs or wheels to the keg can relocate the drain centrally at the bottom of the tank, ensuring the entire contents can flow out without tilting.
Tanks can also be equipped with a thermometer. It is essential to use an electronic one, as analog thermometers are unsuitable due to their low resolution and accuracy. A thermometer in the tank allows you to estimate how much alcohol remains inside. Unlike in the column, the temperature in the tank rises during the process until all the alcohol has evaporated. The user manual includes a special chart showing the relationship between the liquid temperature in the tank and the current concentration of remaining alcohol, helping you plan the process.
Is Insulation Worth It?
Yes, for two reasons. The first is the obvious saving on heating power—an insulated tank operates more efficiently. The second reason is protection against accidental burns. An insulated tank does not pose such a hazard even with direct contact. Remember, only the sides and top of the tank are insulated, not the bottom. Why? If you slept through physics classes :) let us remind you that heat rises, and the heat radiated by the bottom of the tank is insulated by the air accumulated underneath—the lower rim of the keg is elliptical, and the keg stands on this rim, creating a fairly tight seal. Therefore, there is no risk of, for example, floor ignition, even if it is wooden.
Kegs can also be equipped with an oil jacket—the electric heater then heats not the mash directly but the oil in which the inner tank is immersed. A keg with an oil jacket ensures even heat distribution and almost zero risk of burning the contents.