What is the recommended first step when cleaning a beer glass?

The recommended first step when cleaning a beer glass is to rinse it with cold water. This initial rinse helps to remove any residue, dust, or particles that might be on the glass, ensuring that the surface is clean before any additional cleaning steps are taken. Rinsing with cold water is gentle and can effectively prepare the glass for a more thorough cleaning.

Following this step, further cleaning can be done with soap or hot water, but starting with cold water prevents smudges and ensures that you aren't embedding any dirt into the glass with friction or scrubbing. It also helps to maintain the structural integrity of the glass by not introducing any drastic temperature changes right away. This technique aligns with best practices in glassware maintenance and beer presentation, as ensuring the glass is clean is vital for preserving the beer's flavor and aroma during serving.