I'm catching them from an inlet of the Thames so not the cleanest water in the world ... purging cleans them out of any crap and takes away the shitty river taste ...... Saves you cutting out the shit vein too.
You can take the intestine out easily before cooking
Can do, but if it's been purged long enough with nothing to eat, there's nothing in the shit vein. Have you seen what those things eat?
Yep their diet is almost identical to yours lol ........