Restricted fuel delivery and malfunctioning spark plugs are the most common reasons for cars to hesitate during acceleration. The first step to identifying the cause of this is to find out if the car is fuel-injected or if it has a carburetor.
Prepare the vinegar solution. You will need white vinegar and a basin or sink. 1  Fill up half a clean basin or sink with cold water. Make sure the water is not warm. 2  Add 1 cup vinegar for every 3 cups of water.  Mix the solution well with your hand.
Wash the berries in a diluted vinegar bath (1 cup vinegar plus 3 cups water) and spin them dry in a salad spinner lined with paper towels until they are completely dry. Store the cleaned berries in a sealable container lined with paper towels, leaving the lid open a little to allow moisture to escape.