FACT – If you see foam you have more than enough detergent to clean and you sometimes may have too much. Foam is created by molecules called surfactants. Those molecules love to be at “interfaces” – places where soil and surfaces meet, water and surfaces meet and water and air meet. Those same molecules can’t be two places at once. If they are cleaning up stains and dirt off your dishes or clothes, then some extra ones are needed to create foam with the air. Foam gives you the sense of security that you have enough detergent. However, too much foam can make it hard to rinse or in the case of automatic dishwashers and front loading washing machines – can interfere with the cleaning process.