Sounds like it worked a lot better then what I tried with shellfish. I filled my instant pot with prawn heads to make stock, but it didn't seal properly because a couple antennas were under the gasket. Also didn't realize how much bait was in their guts. Came home from walking the dog an hour later, to the foulest stench filling the house. In a rage I dumped the works down the garborator and clogged the drain. It took hours to get it unclogged. My wife almost murdered me. Learned a few lessons the hard way that day.