lineup room

A still room is a room in a distillery where the distillery's pot stills are located and used in the distillation process. The room's primary function is to house the wash still and the spirit still, along with the associated equipment, and to ensure proper heat distribution, safety and an overview of the process.

Equipment and configuration

• The main equipment consists of the wash still and the spirit still, typically copper-clad or with copper-lined interior surfaces to influence aroma and remove sulfur compounds.
• Connections between the stills and related parts include conduits to heat supply (usually steam from a boiler or steam jacket), supports for the neck and the lyne arm, as well as the lyne arm (lyne-arm) that carries the distillate onward to the condenser.
• Condensers and any columns or trays are located inside or immediately outside the still room itself, but wiring and piping pass through the room's walls or ceiling to complete the process loop.
• The spirit safe is often placed near the stills and provides control and measurement of the distillate without giving full access to the vapors. It allows monitoring of alcohol content and strength, while safety is maintained by restricted access.
• Materials: Copper is the dominant material in the contact surfaces of the wash and spirit stills, where copper's chemical properties contribute to removal of harsh sulfur compounds and to forgiving aromas. Exterior structures and piping can be stainless steel or alloys, often insulated to limit heat loss.
• Safety equipment and drainage systems are integrated into the room design to handle any leaks, steam and pressure changes, including appropriate ventilation and fire-suppressing measures.

Placement and layout

• The still room is often located close to the fermentation area and near the heat supply, so the distance between wash and distillation is minimized and piping runs are logical and safe.
• The layout of the rooms aims for efficient access for operators and maintenance, while access to safety and monitoring equipment is restricted to authorized personnel.
• The arrangement of wash and spirit stills can vary between brands and traditions, but there is often a clear separation between the first and second distillation with clear workflows and sequence in the process.

Function and operation

• During distillation the wash is heated in the wash still to produce alcohol at a lower ABV, after which the distillate is moved to the spirit still where higher purity and alcohol strength are achieved through collective physical and thermal processes.
• Temperatures and heat input are carefully controlled to maintain desired flux and distillate parameters, which greatly influence the overall style and character of the whisky.
• The distillation process in the still room affects aromas, body and alcohol content in the final product through control points such as temperature drop, distillate flow rate and available valves.

Maintenance and operational safety

• Regular cleaning and maintenance of copper surfaces is important to ensure correct chemical reactions and prevent mineral buildup. Copper surfaces often require specific cleaning procedures to maintain their shape and function.
• Seals, grommets, and packings are checked regularly to prevent leaks and steam leakage.
• Safety assessments include ventilation, fuel handling and proper handling of alcoholic vapors. Access to the still room is normally restricted to authorized personnel, and safety procedures are used in case of operational disruptions or emergencies.

History and variations

• Historically, still rooms have been central elements in traditional whisky distilleries, where the copper still design and the alternation between wash still and spirit still were crucial to the product's style and consistency.
• Variations in layout and equipment reflect technological advances and regional differences, but the core of the room's function—to house and support the distillation process—remains consistent.

Related rooms and processes

• Mash tun and fermentation rooms are often in close proximity to the still room to facilitate transport of raw materials and intermediates.
• The spirit safe and measurement equipment in or near the still room allow monitoring and control during distillation without giving full access to the vapors or the surrounding atmosphere.