Fill a large bowl with 1 cup of white vinegar and 3 cups of cold water. (See Note 1)
Add fresh strawberries and gently swish around for about half a minute. Let soak for 5 minutes.
Drain the vinegar water. Fill the bowl with fresh cold water and rinse the strawberries in it. (Alternatively, rinse the strawberries under running cold water.)
Arrange the strawberries in a single layer on a baking sheet lined with paper towels. Air dry the strawberries for a few minutes, or pat dry with more paper towels. (TIP: Keep the strawberries as dry as possible, as excess moisture promotes mold growth.)
Arrange the strawberries stem side down in a food storage container lined with a paper towel. (You can reuse the plastic clamshell container. In that case, you don’t have to dry the strawberries as thoroughly since there is some air circulation.)
Store the strawberries in the refrigerator. (I've had strawberries last up to 10 days in the fridge!)
Notes
Note 1: If you plan on using more than 1 pound of strawberries, add more vinegar and water as needed to keep them submerged. For optimal result, follow 1:3 ratio of vinegar to water. Storing Tips: -Store clean strawberries in the fridge for up to 7 days. -To freeze, remove the stems and white center of the clean fruit, and transfer the strawberries to a sealable bag or airtight container. They can be frozen for up to 6-12 months.