1. The method of removing the black line is relatively simple. Let's prepare a toothpick first, and count the third joint from the joint between the shrimp head and the shrimp body, and then use the toothpick to pass through the shrimp body, holding the shrimp in one hand and the toothpick in the other, so that the shrimp line can be picked clean, and the whole process must be light to avoid breaking.

2. When eating crayfish, in addition to removing the shrimp line, the shrimp head should also be thrown away. Although the shrimp head is rich in shrimp yellow, its head absorbs and processes the most toxins, and it is also the easiest to gather parasites and bacteria. Long-term consumption is harmful to health.