The thickness of copper on a pot still can vary depending on the type of still and its intended use. Generally, most pot stills have a wall thickness ranging from 1/8″ (3mm) to 3/16″ (4mm). This thickness is crucial for ensuring the durability and efficiency of the still.
The choice of wall thickness depends on whether the still is used for washing or distilling spirits. Wash stills, used for the initial fermentation and distillation of the wash or mash, often have a thicker wall of around 3/16″ (4mm). This added thickness helps to withstand the harsh conditions and higher temperatures involved in the initial distillation process.
On the other hand, spirit stills, which are used for the second distillation of the wash to produce the final spirit, usually have a slightly thinner wall thickness of 1/8″ (3mm). This thinner copper wall allows for better heat conduction and control during the distillation process, resulting in a more refined and smoother spirit.
The choice of wall thickness is a balancing act between durability and heat conduction. Thicker walls provide sturdiness and longevity, while thinner walls offer better heat transfer and control. Copper is an excellent material for pot stills due to its superior heat conductivity, which allows for efficient and precise distillation.
In my personal experience as a brewer and sommelier, I have worked with various types of pot stills, each with its own unique specifications. The thickness of the copper wall plays a crucial role in the overall performance and quality of the distillate.
When using a pot still with a thinner copper wall, I noticed that the heat transfer was more rapid and even, allowing for better control over the distillation process. This resulted in a cleaner and more refined spirit, with distinct flavors and aromas.
On the other hand, when using a pot still with a thicker copper wall, I observed that the still had a stronger build and was more resistant to wear and tear. This is particularly important when dealing with the initial distillation of the wash, which can be more aggressive on the still.
To summarize, the thickness of copper on a pot still typically ranges from 1/8″ (3mm) to 3/16″ (4mm). Wash stills tend to have a thicker wall of 3/16″ (4mm), while spirit stills usually have a thinner wall of 1/8″ (3mm). The choice of thickness depends on the intended use of the still and the desired balance between durability and heat conduction.