The reasons why the steamed rapeseed oil smells bad are: poor quality of rapeseed oil, improper heating of oil, poor quality of vegetables and too long steaming time.

1, inferior rapeseed oil: If inferior rapeseed oil is used, it will produce adverse reactions during heating, resulting in spicy taste after steaming vegetables.

2. Improper heating of oil: If the temperature of oil is too high or too low, it will lead to spicy taste after steaming vegetables. Therefore, when steaming vegetables, we should control the oil temperature to avoid overheating or too low.

3. Poor quality of dishes: If the quality of steamed dishes is not good, adverse reactions will occur during heating, resulting in spicy taste after steaming.

4, steaming time is too long: long-term cooking will lead to the loss of nutrients in the dishes, but also make the steamed dishes taste worse and spicy.