Keeping crawfish alive

I have a spare fridge in my man cave and remove the bottom drawers and shelf and put the sack in it to keep them cold before getting the boil ready.

If only for a couple hours, I'll take a 48 qt. ice chest, dump the crawfish in it and toss some ice over them and leave the drain open so water doesn't collect in the bottom.

Usually one bag of ice scattered among the crawfish will suffice for a few hours time.


ETA: I boiled a sack a few weeks ago and it was at least 3 hours from the time I picked them up to boil time and I did the ice chest and ice method. I only had 2 dead crawfish in a 35 lb. sack.

keep sack in shade. hose down every 4-5 hours.
if multiple days, keep in shade, put a bag of ice or 2 on them and cover with big beach blanket

Large ice chest.
Piece of cardboard on top of the sack.
Cover with ice.
Lid cracked.
Drain plug open.

But don’t they get cold this way?

Cold air sinks, hot air rises. The cold air produced by the ice on top of the crawfish will easily cool the ice chest and as long as the drain is open, the water escapes.

I was told to leave them in the sack inside the ice chest and ice as if left able to roam the will begin to kill each other. Not sure if this is a real thing or not but I generally dont take them out of the sack until I am ready to really clean them.

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Have kept them on the concrete covered in ice for several days

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I generally dont take them out of the sack until I am ready to really clean them.

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Correct

Brought 20 sacks to the beach in college and boiled several times. Kept them covered in ice under a car port. That was the only option. Laugh away

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I have a spare fridge in my man cave and remove the bottom drawers and shelf and put the sack in it to keep them cold before getting the boil ready.

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Same. I just put the sack in a cheap aluminum turkey roasting pan to catch any runoff.