Final answer:
Keep the cheese on the beef patty for about the last minute of cooking to adequately melt it before placing it on the bun. The exact timing may vary based on the cheese thickness and personal preference.
Step-by-step explanation:
The question of how long to keep cheese on a beef patty before moving it to a bun falls into the realm of cooking, which can be related to Health class in terms of food preparation and safety. When cooking a cheeseburger, the cheese is typically placed on the beef patty during the last minute of cooking. This timing allows the cheese to melt adequately without overcooking the patty. You would look for the cheese to become soft and begin to melt around the edges, which typically indicates it's ready to be placed onto the bun. The exact time can vary depending on the thickness of the cheese, the temperature of the patty, and personal preference for the doneness of the cheese. However, the goal is to get a nicely melted piece of cheese that compliments the cooked beef patty.