Which type of soap should be used for washing draft system glasses?

The use of non-petroleum, sudsless soap for washing draft system glasses is ideal because it effectively cleans without leaving any residue that could affect the taste and aroma of the beverages served. Sudsless formulations are important in this context as they do not produce foam that can cling to the glassware and potentially transfer flavors to the beer. A non-petroleum based soap is vital because petroleum products can leave residues that might taint the beer or create a film on the glass.

Using antibacterial soap may seem appealing for sanitary reasons, but its residues can interfere with the sensory experience of the beer. Petroleum-based soaps should be avoided as they can introduce flavors and residues that are not compatible with food or beverage environments. While dishwashing liquid is commonly used, many formulations of these products can create excessive suds, leading to similar issues as antibacterial soap regarding residue and flavors. Therefore, non-petroleum, sudsless soap is the best choice for maintaining glass cleanliness without compromising the quality of the beers served.