To keep strawberries fresh longer in refrigerator, use 1 Part White or apple cider vinegar to 10 Parts Water. Soak the berries, leaves & all in the vinegar/water mixture for a few minutes. Drain berries in a colander until completely dry. Place berries in an uncovered bowl in refrigerator. The vinegar/water mixture kills any mold spores on the strawberries & keeps them fresh longer. The vinegar does not affect the taste. This works for all kinds of berries.