I think I saw it on Wirral Sea Fishing Trampster? He certainly posts on there - I'll have look and see if I can get you a link mate.....
OK I'll admit that I started thinking about a George Forman grill for doing the buggers enmasse
but just the thought of the potential smell nearly made me sick
I reckon the bait suppliers have thought about commercialising it but 1. Can't take the poisoning odour and 2. Know it will reduce demand through eliminating waste and perishing by freezer burn etc etc
Honestly if you've not tried it you are missing a trick. I was sceptical too at 1st