The biggest issue is taking them out in warmer temperatures,you shorten the maggot stage span,your only real choice is to take pretty well what you expect to use(difficult),or carry bait in a cool bag/box and only bring out small amounts,if maggot is held in the fridge from buying deterioration is slowed,maggot is a bait I use less in the summer these days,but I dont find the fish are fussed that the bait is tough,unless they are starting to cast,they are garbage then....