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.
When you're ready, wash each berry differently. Blueberries can take about any method, apart from a long soaking. Strawberries, with their delicate, absorbent skin, require a little more care: Quickly swish unwashed berries in a bowl of water, move them to a strainer, then move them to paper towels, placed in single layers and let them dry.