Nobody can deny that disposing of crustacean shells (crabs, lobsters, shrimps) usually doesn’t smell very good.
But there’s no need to be crabby about it. Just keep in mind that smells are usually a strong indicator that something is fishy.
German biochemist Dr. Lars O. Wiemann talks about the problem. As 750,000 tons of crab shells are produced every year in the European Union, it’s imperative to find a way to efficiently recycle the waste.