Jeeez, guys. You're grilling him on his cooking habits?
Shutter speeds are designated in fractions of a second. The marking "1" means one second or 1/1 second. "2" means 1/2 second, "30" means 1/30 second and so on.
This is the length of time the film is exposed to light. A general rule to avoid motion blur is to use a shutter speed of 1 over the focal length of the lens you are using, that is 1/30 sec. for a 35mm lens, 1/60 sec. for a 50mm lens and so on. A better rule is to use a tripod.
Is your bread very good?