Whether lettuce needs to be blanched depends on the specific cooking method and purpose. Here are some detailed instructions on whether lettuce needs to be blanched:
1 Cooking method: If the lettuce is cooked by stir-fry or stew, it is usually not necessary to blanch first. Because this cooking method takes a short time, it can quickly heat the lettuce to the right temperature, thus preventing nutrient loss and poor taste.
However, if you use a long-term cooking method, such as soup or long-term steaming, in order to prevent the lettuce from becoming too soft and rotten during the cooking process, you can first blanch it.
2 Purpose: If you want to maintain the color and taste of lettuce, you can blanch it. Blanching allows the lettuce to heat up quickly while making the chlorophyll in the lettuce more stable, thus maintaining its emerald green color and crisp taste.
In addition, blanching water can also remove some bitterness and astringency and improve the quality of eating. However, it should be noted that the blanching time should not be too long, otherwise it will cause the lettuce to become soft and tasteless.
In conclusion, depending on the specific cooking method and purpose, it is possible to decide whether it is necessary to blanch the lettuce. If you cook for a short time or want to maintain the color and taste of the lettuce, you can blanch it. However, it is necessary to pay attention to the blanching time should not be too long to avoid affecting the taste and nutritional value of lettuce.