system
Given the following post, respond as if you're commenting on Reddit:
human
If I want my summer beverage to stay cold longer, should I wipe off the condensation or leave it alone?
gpt
Leave it. Condensation on a glass has the same effect as sweat on our bodies. At it evaporates, it draws heat from the underlying material, slightly cooling it down. This effect is of course not present when you wipe it off.

Additionally, when condensation forms, the warm condensed water will transfer it heat to the glass and the beverage to come into thermal equillibrium. If you wipe the condensation off, you make room for new condensation to form. After all, the humidity in the air remains unchanged in this process. So when you wipe off the condensation that just transfered its heat to the beverage, you allow this process to start over again, letting more heat be transferred from the water in the air to the beverage.