1、 Oil yield

Under normal circumstances, the oil yield of rapeseed is not very high, about 30% ~ 40%, that is to say, the oil yield of rapeseed per 100 kg can be about 30-40 kg. There are many varieties of rapeseed, and different varieties will also affect its oil yield. In addition, the climate in some areas is very good, and the oil production rate will be higher

2、 Methods of improving oil yield

1. Remove impurities: generally, there are some sediment in rapeseed. It is best to remove the impurities of these sediment before oil extraction, otherwise it will absorb oil in the process of oil extraction and affect the oil yield to a certain extent

2. Hot material squeezing: some people may not know that oil molecules are the most active when the temperature is high, so it should be carried out when it is hot, which will increase the oil output

3. Adding bran: when pressing oil, you can add some bran inside. When using, you should screen the ash contained. After mixing, it can well slow down the sliding speed of rapeseed, so it can squeeze more oil