Jin Defu is the heir to the biography of Jin Man Sheng Mao Sr., and he has lived up to the painstaking efforts of Jin Man Sheng Mao Sr. He did a lively mutton soup business in his own compound in Shi Yu Brand Lunan, Dongguan Street, Laiwu. Although people are in poverty during the period of social unrest, there are many people who come here to drink mutton soup in Dongguan every time, and they are packed. Unfortunately, due to historical reasons such as social changes, this ancestral craft is not recorded in writing, but passed down from generation to generation.

According to Tian Maoquan, a contemporary writer, after the founding of New China, Jin Defu's son Jin Yuling inherited his father's career and carried it forward. Jin Yuling also emphasizes skills. In order to adapt to the changes of contemporary customers' food culture, Jin Yuling constantly improved her operating techniques and methods of eating materials, which made the number of customers increase day by day and the business was very prosperous. At that time, there was such a jingle in the society: "mutton soup, mutton soup, you smell good." If you don't drink for one day, you will panic if you don't drink for two days. You will spend a month's salary. This month is not enough, and it will be made up next month. " Lu Xiao, a reporter from the mining commune, once reported in the newspaper that "the unlisted business outside the door is booming". 1985 Several mutton soup kitchens have appeared in Laicheng District. In order to prevent the mutton soup kitchen from being chaotic, Jin Yuling hung the mutton soup kitchen into a "Jinjia old shop". Since then, Laiwu Jinjia mutton soup has become the mutton soup of Laiwu Jinjia old shop, and it has also become the golden signboard of Laiwu mutton soup. In order to cultivate future generations, the older Jin Yuling pushed her eldest son Jin to the position of supporting the store. Jin, who is good at management, will carry forward the past and make Jin's old shop bigger and stronger. In just a few years, together with brothers and sisters, we have developed seven direct stores and 1 1 franchisees. In 2000, Laiwu Wenzong Muslim Food Co., Ltd. was registered as a new food processing factory. Up to now, the number of employees has reached 350, with an annual output of 600 tons of halal food and an annual output value of 30 million yuan. Song Qiyuan recorded in the article "Jin Family Mutton Soup" that the mutton soup in the sixth series of Laiwu Literature and History is "excellent in quality and delicious in taste, and the guest evaluation belongs to the Jin Family Old Shop in Dongguan Street, which is well-deserved". Wang Yuanyi's book "Taishan Cuisine" is recorded as follows: "Laiwu mutton soup, a famous food in Tai 'an area, has been handed down from Laiwu Jinjia old shop for four generations, with a history of 100 years; Jin Yuling, the existing third-generation successor, manages, carefully selects materials and slaughters and processes strong goats on the same day; Mutton made of local famous Laiwu ginger, chicken leg onion, pepper and other seasonings is not fishy, the meat is crisp and rotten, the soup is milky white, fresh and original. The book Light of the New Century (edited by Li Chenghua), a compilation of large-scale historical documents in Shandong Province, describes in detail the development history of Jinjia time-honored mutton soup with the title of Jinjia time-honored brand in Laicheng District, Laiwu City. In 2000, Laiwu Daily reported on the topic of "Golden Mutton Soup-Jinjia Old Shop". 1985 chairman Wan Li of the National People's Congress Standing Committee (NPCSC) visited Laiwu. After tasting the mutton soup, Chairman Wan Li praised the mutton soup of Jinjia old shop as "mutton soup is better than other dishes". Since then, Tian Jiyun, Vice Premier of the State Council and leaders of various ministries and commissions who visited Laiwu, have received mutton soup from the Jinjia old shop. Even the outsiders who drank the mutton soup from the Jinjia old shop gave thumbs up and praised it. Many foreigners took photos with the staff of the Jin family's old shop as a souvenir. As a result, the reputation of mutton soup in Jinjia old shop has greatly increased, and its reputation has increased day by day, and it has boarded the gold medal list of folk famous foods.

The mutton soup of Jin's old shop is not only famous inside and outside the province, but also very fragrant in Taiwan Province Province. It was Jin Yuling who passed on her ancestral craft to her brother-in-law in Taiwan Province Province, who was famous in Taiwan Province Province. So the Shandong Overseas Chinese News and the Export-oriented Economic Herald reported on the fragrance of Laiwu snacks in Kaohsiung, Taiwan Province and Laiwu mutton soup in Taiwan Province. In June, 2002, the trademark of Jinjia old shop was registered, and the mutton soup of Jinjia old shop was protected by law, which created a good environment for the future development of the old shop.