I go the trouble of fishing all the BSFL out of the "dirt' by hand and place them in some dry coco peat when storing them.
Those I plan to use inside a week I place in an empty plastic takeaway tub (which has airholes in the lid) , they will dry and clean each other by crawling over each other.
I tend to hand feed my BSFL and flies to my skinks and dragon. I snip the worm's head off to give the lizard a taste of the yummy stuff inside else they refuse to eat them.