A control method includes: acquiring chewing/swallowing information via a network from a sensing device with which a user is equipped, wherein the chewing/swallowing information is related to chewing of the user when the user eats a first printed food; determining based on the chewing/swallowing information, a swallow cycle duration of the user, and determining based on a first hardness and the swallow cycle duration, a second hardness for a second printed food to be created by a food printer; and transmitting print control information to the food printer via the network, wherein the print control information being used for causing the food printer to create the second printed food having the determined second hardness.