Moms really are the best. In addition to the upside-down airtight container method, there are a few other ways to keep guacamole from turning brown. Each storage tip limits the amount of air that ...

Pack the guacamole tightly into an airtight container, using the back of a spoon to remove air pockets. Smooth the guacamole's surface with the spoon. Gently pour a one-inch layer of lukewarm ...