Step 5: Remove carapace
If you want to keep the carapace for serving or dry it for your next art project, remove all of the squishy bits from its nooks and crannies. You may need to employ a small brush or tool to remove guts from the furthest recesses. After you've dislodged everything, give it a thorough spraying to make sure you've rinsed all the yuck off. Now you're ready to fill it with crab salad, or a seasoned crab/breadcrumb mixture for baked stuffed crab.
If you're drying the shell, give it a soapy scrub as well before leaving it in a warm, dry spot to dry out. An oven on the "keep warm" setting is great for this if you're in an otherwise humid place.