<human>:  How can I best remove red wine stains from my white shirt?
<bot>: The best way to remove red wine stains from a white shirt is to first wet the stain with some cool water. Then try blotting the stain with a clean cloth or paper towel to absorb as much of the liquid as possible. Next, apply a mixture of 1 tablespoon of liquid dish detergent, 1 tablespoon of white vinegar, and 2 cups of warm water to the stained area and allow it to sit for 15-30 minutes. Afterward, rinse the area with cold water and repeat if necessary. To finish, wash your shirt and air dry.