Shrimp. The shrimp prep includes removing the shells and mud vein.
16 oz thawed, extra large raw shrimp, with or without shells (about 30 shrimp)
Pinch. To remove the shells, pinch the tail shell (top to bottom), between your index finger and thumb and gently squeeze the tail to crack the shell.
Pull. Holding on to the tail shell, with your other hand, gently pull the body of the shrimp away. You should be able to pull the shrimp tail meat out of the shell.
Peel. Then, pull the rest of the shell off by peeling from the legs and unwrapping the body. This might take a little practice, and the goal is just to make sure you remove all the hard shell pieces. 10 minutes to peel 30 shrimp.
Mud Vein. To remove the mud vein, score the back of the shrimp the from head to tail to split open the meat. You should see a dark vein, remove with fingers or rinse out with water. I think it's faster to score all and then go back and rinse all in a bowl of cold water. 7-8 minutes to score and wash 30 shrimp.
Soak. Once the shrimp are clean, place them in a bowl with 2 cups of warm water and 1/4 teaspoon salt and let them soak for 10 to 15 minutes.
2 cups warm water, 1/4 teaspoon sea salt
Drain. Drain your salty soaked shrimp and pat dry.