Open to primary school students and their parent(s)/guardian(s) in Hong Kong. Participants must enrol as a team, and each team shall consist of 1 to 2 parent(s)/guardian(s) and 1 to 2 primary school students, with a maximum of 4 members per team.

Open to secondary school students in Hong Kong. Participants may enrol as a team of 1 to 3 student(s) with an adult (must be teacher, parent or guardian of participating students) as contact person.

Open to full-time students currently enrolled in any university, higher education institute or vocational institute in Hong Kong.

Open to Hong Kong residents aged 18 or above.

This entry type requires participants to create a cooked dish where surplus food is the main ingredient. For example, dishes made with meat trimmings, bread crusts, etc.

This entry type requires participants to develop a zero-waste menu of at least 2 dishes that fully utilizes all parts of the ingredients, creating no food waste throughout cooking. For example, creating dishes with chicken meat and chicken bone respectively.