1 Husband and wife lung slices are a famous dish in Chengdu, Sichuan Province. In the 1930s, Guo Chaohua, a native of Chengdu, and his wife Zhang Tianzheng were engaged in manufacturing and selling cold lung slices. After they became famous, this dish was also called "Husband and wife lung slices".

2. It is said that at the end of the Qing Dynasty, there appeared vendors selling cold-mixed lung slices in the streets and lanes in Chengdu. Generally, they used scraps from beef offal as raw materials, sliced them after marinating, and mixed them with seasonings such as soy sauce, pepper, pepper noodles and sesame noodles for cold-mixing, which was called "cold-mixed waste slices".

3. This kind of cold food can control the amount of seasoning. It is very popular in Sichuan, which likes spicy food and hot weather, and it has been preserved because of its unique flavor and reasonable price.

4. In 1930s, Guo Chaohua, a native of Chengdu, and his wife were engaged in making and selling cold salad "scraps". They were industrious and capable, and the cold salad scraps they made were reasonable in price and delicious. Because they often peddled in the streets, they accumulated fame, and people in all the neighboring eight townships recognized their signboards.

5. Because the husband and wife are famous for making waste films, everyone calls their waste films "husband and wife waste films". Later, because the meaning of "scrap" was not good, and because there were beef lung slices in the cold salad scrap, it was renamed as "husband and wife lung slices"

6. Later, the husband and wife opened a store, expanded the scale of operation and improved the production process, making the husband and wife lung slices a traditional food.