The data set covers 226 SKUs, 873 ingredients and 305 suppliers in 1,218 restaurants of Lao Xiang Ji. Lao Xiang Ji has released the original text of the Lao Xiang Ji Food Traceability Report, which is 677 pages and 200,000 words, and contains 202 supplier details and 484 three-card traceability files (188 restaurant food traceability cards, 136 central kitchen food traceability cards, and 160 external raw material traceability cards).