The price of third-grade rapeseed oil is higher than that of first-grade rapeseed oil.

2. Different refining degrees:

Rapeseed oil is highly refined and undergoes degumming, deacidification, decoloration, deodorization and other processes. The three-stage refining degree of rapeseed oil is low, and it only goes through a simple degumming and deacidification procedure.

3. Different raw materials:

Local rapeseed is selected as the third-grade rapeseed oil, which requires higher quality of raw materials and higher cost.

4. Different freezing points:

The first-grade rapeseed oil has a high freezing point and is not easy to solidify at low temperature; The third-grade rapeseed oil has a low freezing point and is easy to solidify at low temperature.

5. Different smoke spots:

First-class rapeseed oil has high smoke point and less oil smoke; The third-grade rapeseed oil has a low smoke point and a large oil smoke when cooking.