Keeping Squirty Cream Fresh
When squirty cream was first invented the manufacturers soon came up with a problem with their cream in a can, excess cream on the outside of the nozzle soon went off, turning an unhealthy shade of blue. To keep their product in production they organised a competition to find a solution, a competition that I won. All you have to do to keep your purchase fresh is to run the nozzle under your tap for a few seconds; because there is no cream left on the outside of the nozzle there is nothing to go off. My prize money went on digging water wells in the Third World.