Commercial kitchen engineering is a professional project that requires multiple characteristics such as efficiency, safety, hygiene, and durability. Here are some basic requirements for commercial kitchen engineering:

1. Efficiency: Commercial kitchen engineering requires high efficiency to improve kitchen work efficiency, reduce labor and time costs. For example, designing a reasonable kitchen layout, selecting efficient kitchen equipment, and choosing efficient smoke exhaust systems.
2. Safety: Commercial kitchen engineering needs to have safety to ensure the safety of kitchen staff and consumers. For example, designing reasonable fire-fighting facilities, selecting safe and energy-saving kitchen equipment, etc.
3. Hygiene: Commercial kitchen engineering needs to have hygiene to ensure the hygiene quality of food and the health and safety of consumers. For example, designing reasonable cleaning facilities, selecting food grade materials, and establishing standardized cleaning and hygiene systems.
4. Durability: Commercial kitchen engineering requires durability to reduce maintenance and replacement costs. For example, selecting high-quality kitchenware equipment, choosing anti-corrosion and waterproof materials, etc.
5. Maintainability: Commercial kitchen projects need to have maintainability to facilitate maintenance by kitchen staff. For example, designing kitchen equipment that is easy to maintain, selecting parts and materials that are easy to replace, etc.

In summary, commercial kitchen engineering requires comprehensive consideration of multiple factors to meet the needs of commercial kitchens.