#11 Spray Homemade Vinegar to Kill Pests
Once your homemade wine vinegar is ready to use, fill one-third of a spray bottle with it and the remaining with water. Spray or rub it on pests and watch them will be removed.
#12 Kill Mealybugs
Soak a cotton ball in leftover wine and dab it on mealybugs and aphids to get rid of them. Use it once a week until the infestation disappears. Remember that Test it on a small part of a plant to ensure this does not cause leaf burn.
#13 Clean Fruits and Vegetables
Using the leftover wine to clean fruits and vegetables can help kill unhealthy bacteria that can form on the surfaces of the produce like E. coli and salmonella. Do not forget to wash the fruits and vegetables afterward with clean water as not rinsing could attract ants or cause rotting.