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.
Spread the berries evenly over the towels and leave them to dry for an hour or two. If necessary, blot them with paper towels to remove additional surface moisture. If you don't want to devote the time and effort to thorough drying, you can wash small amounts of berries with vinegar as you need them.