A synthetic resin cap comprises: a cap body having a top plate and a cylinder that is vertically lowered from the peripheral edge thereof; and a liner provided on a lower surface of the top plate. The fuel composition comprises 0. A cooked food product is preferably pasteurized at a temperature below the temperature at which it was cooked. A second pump selectively fluidly communicates with the actuator by a second fluid line. A scheduler estimates the remaining time of execution of each job, compares with a migrationfreezing cost, and determines a job to be movedfrozen.