Red wine has a tendency to stain almost everything it touches, grout being no exception. Grout is the white material that fills the space between tiles. This area is often difficult to clean, but with a little patience and a few materials it can look as if it never happened.
Blot the area dry with a clean cloth. Use a sponge or separate clean cloth to wipe the area clean that has been dipped in warm soapy water. Mix 2 tbsp. of Dawn dish soap in 3 or more cups of warm water and use that to remove the stain.
Mix together 4 tbsp. of baking soda, 4 tbsp. of ammonia and 4 tbsp. undiluted white vinegar in a spray bottle and fill it with at least a liter and a half of water. Be sure that the mixture is mixed quite well for full effectiveness and spray it on the affected area. Let the mixture stay on the stain for at least 15 minutes before rinsing it away with clean water.
Put hydrogen peroxide in a spray bottle and spray it directly on the stain. Check in 30 minutes to see if you need to spray more on the stain. Repeat if necessary until the stain is gone.
Mix together one part of bleach and one part of baking soda into a paste and apply this to the stain. Allow this to sit for five minutes and scrub the area with a grout brush or toothbrush. Rinse the area with warm water and repeat if necessary.