That's where user stories can help: "As a user, I want to store my food and drinks in the refrigerator so they don't spoil" "As a user, I want to store drinks

That's where user stories can help: "As a user, I want to store my food and drinks in the refrigerator so they don't spoil" "As a user, I want to store drinks in the refrigerator so I can drink them cold" "As a user, I want to store my medicine in the refrigerator so it can stay below 25 C"