I rarley hang meat, but take all the fat off I can.
I wash it as soon as possible, alsoo.
If you wash it, its a good thing you don't hang it. Bacteria would become a problem.
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The darker the meat becomes the better it will taste I find anyway, some meat cutters may have their own opinion
Picked this up off a site, pretty much what I do. Some differences are temps, a bit colder, if poss to find a cooler.
Aging Meat: Aging meat is the practice of holding carcasses or cuts of meat at temperatures of 34 to 37 ーF for 7 to 14 days to
allow the enzymes in the meat to break down some of the complex proteins in the carcass. Aged meat is often more tender and flavorful. Do not age any game carcass if it was shot during warm weather and not chilled rapidly, if the animal was severely stressed prior to the kill, if gunshot areas are extensive, or if the animal was under 1 year of age. Aging is not recommended for carcasses with little or no fat covering because they may dry out during aging, and are more susceptible to deterioration through microbial growth. If the meat will be ground into sausage, aging is unnecessary.
Leave the hide on and maintain the proper temperature when aging a carcass. Aging game that has been skinned often results in drying and high weight loss. For this reason, properly chilled game should be aged with the hide on unless it is to be aged in a cooler where humidity is high. If you do not have the proper cooler space, spoil-age or dehydration may result.
Do not trim fat from game meat before it is aged because the fat protects the meat. However, fat should be trimmed after aging to avoid undesirable flavors associated with the fat.
Limit aging to a maximum of two weeks at 34 to 37 ーF. At this point tenderization slows down, and bacterial slime develops which then must be trimmed.
Cold shortening, which causes meat to be tough, occurs if the internal muscle temperature drops to 32 ーF within 12 hours after the kill, such as if carcasses under 100 pounds are slaughtered when the temperature is below freezing. Frozen carcasses should be thawed and aged at 34 ーF for 14 days