A 1/2 Gallon Mason Jar Thumper Kit for double distillation is typically used in home distilling setups to improve the efficiency and flavor of spirits. The "thumper" acts as a secondary distillation chamber, allowing the vapor from the main boiler to pass through an additional stage where it can be infused with flavors or further purified. Acts as the thumper, or secondary distillation chamber. Made of glass, so you can observe the proce Sealed with high-quality lids and gaskets for an airtight seal. Double Distillation Functionality: Vapors from the main boiler pass into the thumper, where they condense and revaporize, resulting in higher purity. Users can add fruit, herbs, or other ingredients to the thumper to infuse flavor into the distillate Copper or stainless steel piping for transferring vapor between the main boiler and the thumper. Fittings to ensure a secure and leak-proof connection. Includes: Wide mouth mason jar silicone gasket