Can magnolia tertiary invade rapeseed oil?

Can eat. As long as it meets the national health standards, it will not cause any harm to human health, and consumers can choose with confidence. Primary and secondary oils have high purity and low impurity content, which can be used for cooking at higher temperature, such as stir-frying, but not suitable for long-term frying; Third-and fourth-grade oils are not suitable for high-temperature heating, and can be used to make soups and stews, or to adjust stuffing.