Professional Ethics, Sustainability and Culinary Heritage
This domain tests judgement: what the law requires, what sustainability looks like in a real kitchen, and how a craft tradition is transmitted rather than merely claimed.
The legal floor
食品安全法 prohibits non-food raw materials, recovered 地沟油, and expired ingredients. The 2020 decision bans the consumption of terrestrial wildlife, with aquatic species and listed exceptions outside that ban. 河豚 may only be served from approved farms by qualified chefs. A menu claim of "野生" or "有机" without certification is 虚假宣传, and 亚硝酸盐 is not permitted for colour-fixing in house-made 卤味.
Sustainability in practice
- 边角料 utilisation: vegetable trimmings and bones for stock, fish frames pan-fried then boiled 20 minutes for a 奶白汤.
- Improving 净料率 cuts both cost and waste - a whole fish broken down in-house can move from 45% to 65% yield.
- Buying local and in season shortens the supply chain and improves quality.
- Energy: batch prep, use residual heat, and prefer a 蒸箱 running one load over several single burners.
- Packaging: reduce single-use plastic where a compliant alternative exists.
Heritage
Techniques such as 北京烤鸭, 兰州牛肉面 and 广式月饼制作技艺 are carried as intangible cultural heritage through 师徒 transmission. Standardising weights and times while keeping the hand skill is the defensible modern approach; replacing the skill entirely is not.
Worked example
Break down one whole fish: fillets for 滑炒, frame for stock, head for 剁椒. Reasoning: waste drops below 10%, 净料率 rises from about 45% to about 65%, and the food cost falls roughly 30% without changing the selling price - a sustainability and margin outcome from one decision.
Traps that cost marks
- Substituting a cheaper species while keeping the original menu name.
- Claiming an ingredient origin or "wild" status without documentation.
- Treating heritage as decoration rather than as a specified technique with parameters.