Hongya has a history of processing rattan oil since ancient times. For centuries, every season in the lunar calendar of the cane in the lunar calendar, Hongya’s households must close the rattan oil and use it as an indispensable gourmet seasoning. Also as a precious gift to give people. Jiaqing version of "Hongya County" contains: "Pepper has a bell pepper, with hot oil dripping delicious, said Hongya rattan pepper oil." Hongya rattan oil is processed by traditional technology, without adding any additives, the color is clear and bright, and it is light yellow-green. It maintains the pure fragrance of the cane fruit, the taste is refreshing, the sesame is rich, and the numbness is long. The main seasoning used by the Dongpo pheasant invented by the great writer Hao Dongpo in the Song Dynasty was also Hongya Tengjiao Oil, and praised: "The scent is permeable, the numbness is long, the taste is after the immortal, and the heart is clear."

“Yalian” is a special product in Hongya County and Qionglai, Sichuan Province, China. Due to the strict requirements on geographical conditions, it is a treasure of Chinese herbal medicine Huanglian. The efficacy is three varieties of “weilian”, “Yalian” and “Yunlian”. In the middle of the history, the dynasty used Yalian as a tribute and turned over to the court of Taiting Hospital, so it was also called “Gonglian”.