How Do You Clean A Peanut Butter Jar?
Some recycling centers require that you wash an empty peanut butter jar before putting it in the bin. Yet other centers won’t require this step due to the amount of water some use when washing the greasy residue from the jar. But you don’t need to use a lot of water to clean a peanut butter jar, just a little patience. Fill the empty peanut butter jar halfway full with hot water. Add several squirts of liquid dish soap to the jar. Use dish soap designed to cut grease. Screw the lid back onto the jar. Shake the jar to distribute the water and soap solution to the entire interior of the jar. Let the jar set overnight, shaking the jar several times during the evening. Rinse the jar out in the morning and wipe down the interior with paper towel.