How to transport vegetables from Yunnan to Shanghai?

There are two ways for Yunnan vegetables to get to Shanghai.

1, by air. Its advantages are high speed, and the freshness and nutrition of dishes are maintained. Disadvantages: air transportation is expensive.

2. Cold chain vehicle transportation. Advantages: it can keep the freshness of dishes as much as possible, and the price is slightly lower than that of air transportation. Disadvantages: it takes a long time. Generally, vegetables from Yunnan to Shanghai are of high value.