Can crayfish be fully cooked in 10 minutes?
Generally speaking, if the crawfish are small in size and have been thoroughly cleaned and pre-treated before cooking, a cooking time of 10 minutes is usually sufficient to ensure they are fully cooked. However, if the crawfish are larger or have not undergone sufficient pre-treatment, 10 minutes may not be enough to ensure they are completely cooked through. A detailed analysis is as follows:

When the crawfish are small and have had their intestinal tracts removed and their shells washed before cooking, boiling them in hot water for 10 minutes is usually enough to fully cook them. At this point, the meat will become firm, and the color will change from grayish-green to a bright red, indicating that bacteria and parasites inside have been killed by the high temperature, making them safe for consumption.
If the crawfish are large or have not been adequately cleaned and pre-treated before cooking, a 10-minute cooking time may be insufficient to fully cook them through. Larger crawfish require more time to ensure the heat penetrates to the center, and crawfish that have not been adequately cleaned may still have residual dirt and bacteria, which can easily cause diarrhea or food poisoning.
During the cooking process, the crawfish can be turned occasionally to promote even heating. After cooking, you can judge whether they are fully cooked by observing the meat's color and texture, and by tasting them.