What is the optimal temperature condition for washing a beer glass?

The optimal temperature for washing a beer glass is warm water around 100°F. This temperature is effective in removing residues, oils, and any contaminants that can affect the beer's flavor and carbonation. Washing at this temperature helps to ensure that the glass is clean without risking damage to its surface, which can occur with very hot water.

Using hot water above 150°F can be excessively harsh on certain types of glassware, potentially leading to thermal shock or causing etching over time, which negatively impacts the glass's appearance and functionality. Cold water below 50°F is not effective for cleaning; it may not adequately dissolve or remove oils and residues that can accumulate on glassware. Additionally, using a chlorine sanitizer solution below 90°F can prevent the sanitizer from being effective; optimal sanitizer efficacy typically requires warmer water.

Thus, warm water around 100°F strikes a balance that ensures thorough cleaning while preserving the integrity of the glass, making it the ideal condition for washing beer glasses.