Alternatively, use disposable aluminum crab tins. If you intend to buy refreshing crabs, use as an alternative the shell backs from the crabs on their own. You can also check with your fish monger if they've got any real crab shells as chances are high they’re prepared to dispose of https://edwinhvgpy.ampedpages.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-frozen-crabs-how-to-cook-58250444