Xuancheng wood oil is made by traditional techniques. The process of oil extraction: sieve seed, car seed, fried seeds, milling powder, steamed flour, tread cake, upper pressing, wedge cutting, squeezing, oil picking, there are ten In addition to the mechanical operation of the multi-step process, all others are done by hand.

Xuancheng wood oil quality technical requirements 1, raw material requirements 1. Rapeseed: “double low” rapeseed with full grain in the producing area. 2. Manually spread the way. 3. Fertilization: 300 kg to 400 kg of decomposed organic fertilizer per 667 square meters (mu). 4. Water: Groundwater within the area of ​​origin. 5. Received: hand harvested. The harvest period is from the end of April to the middle of May of the second year. Second, production and processing technology (a) production process. Sieve seed, car seed → fried seeds → crushing → steaming powder → grassing → powdering, treading cake → pressing cake → upper pressing, wedge cutting → crushing, oil picking → dephosphorization, dehydration, filtration → filling. (2) Main procedural requirements. 1. 2. 3. Steamed powder: Place the fine powder of rapeseed in the steamer and cook in boiling water for 5 to 8 minutes until the color of the rapeseed is completely changed from yellow to brown. 4. Tobacco: Take clean straw and make a straw knot. The thickness is even and radially placed in the iron ring. 5. Laying powder, tread cake: The steamed powder is poured into the ring to form a round cake with a thickness of about 4kg and a height of about 7cm. 6. Squeeze and smash: the powder cake is placed in the press and the wooden wedge is installed. Manually hit the raft and squeeze the oil from the cake. 7. Dephosphorization, filtration: low temperature dephosphorization into oil, filtering impurities. 8. Third, the quality characteristics: 1. Sensory characteristics: The project requires odor and taste to have the inherent odor and taste of rapeseed oil. The flavor is rich and lasting, and the taste is pure. Transparency and color red, clear and translucent, not turbid. 2. Safety and other quality technical requirements: Product safety and other quality technical requirements must comply with relevant national regulations.

Apply to：
The producers within the Xuancheng wood oil production area may apply to the Xuanzhou District Quality and Technical Supervision Bureau of Xuancheng City, Anhui Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Anhui Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision and Inspection. Announced after approval. The testing agency of Xuancheng Wood Oil Press is selected by the Anhui Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.