Traditional Culture Encyclopedia - Hotel reservation - Excuse me, where did you buy the cooking oil in the restaurant?

Excuse me, where did you buy the cooking oil in the restaurant?

Regular hotels buy cooking oil from supermarkets in big warehouse, or have separate manufacturers deliver it. Different star hotels are different. Large hotels in Qingdao are all purchased from Metro. But a five-star like Shangri-La should have a special supply channel. Here's to health.