<human>:  How can I tell if a bottle of wine is still good?
<bot>: To determine if a bottle of wine is still good, look for signs of spoilage such as a noticeable change in color, an off smell, or small particles floating in the liquid. If the bottle has been stored properly, an expiration date should be printed on the label. If this is still within the time period, then the wine should be safe to drink.