Grades 6-12. Register. Learn how to make homemade boba tea and a tasty snack! Note: You must have previously attended the Teen Chefs: Kitchen Safety class to register for this program. Teen Chefs classes are NOT guaranteed to be allergy-free. If you have an allergy, please include it in your registration, and feel free to contact us regarding your allergy. Teen events are just for the ages listed, no parents or younger siblings please.