Best way to do this is to tie two loops of floss loosely around the esophagus, squeeze it firmly between the two loops, and pull them taut. If you can tie a package bow one-handed you can do this too - otherwise get somebody to pull it tight for you. Then you do the exact same thing at the OTHER end. If you haven't gut-shot your deer, this makes a nice neat package and once you clear away the mesentery membrane the digestive tract should wrap up nicely and you can just drop it into a plastic garbage bag.
Platic garbage bag?! NO. Throw the guts back in the woods for the coyotes to eat. Good grief.
Just carry a few electricians zip ties. Those little white plastic strips that are self locking. The cops use large zip ties on criminals...
All the guts get left where the deer falls on those I shoot.
I wash the cavity back at the barn before I hang them.
“You use the dental floss to tie off the top and bottom of the entire digestive tract, t”
I was taught to split the pelvis and cut around the anus so that the whole entrail would pull free of the deer. I never taught of tying the esophogas as it is usually empty.
I also cut off the glands inside the rear knees on a buck as it reduces the gameiness of the meat - skinning quickly does also.