Yes its definetely off!
You can tell ground beef is bad if it has a sour smell, a slimy texture, or a grayish-brown color. It may also have a strange or off taste. It's important to always check the expiration date and store ground beef properly to prevent it from going bad.
No, they are probably ruining when they get slimy and may not be safe to eat.
It is possible, particularly if the dog mince is raw. Canned dog mince is probably OK if the can itself is not bent, dinged or swollen. However, the taste may be off and your dog may refuse to eat it.
yes and no yes if it smells alright no if it dosent
fat off
Yes, ground beef that has been thawed in the refrigerator can generally be safely consumed for up to 1-2 days after thawing. If it has been in the refrigerator for 3 days, it's best to check for any off odors, discoloration, or slimy texture before deciding to cook and eat it. If anything seems off, it's safer to discard it. Always prioritize food safety to prevent foodborne illnesses.
That pork is spoiled. Throw it away. Don't risk the food poisoning.
From the USDA... Iridescent Color of Roast Beef: Sliced cooked beef or lunch meat can have an iridescent color. Meat contains iron, fat, and many other compounds. When light hits a slice of meat, it splits into colors like a rainbow. There are also various pigments in meat compounds which can give it an iridescent or greenish cast when exposed to heat and processing. Iridescent beef isn't spoiled necessarily. Spoiled cooked beef would probably also be slimy or sticky and have an off-odor.
500 years.
Beef stock is the juices that come off of boiled or broiled beef. Beef consommé is more of a clear soup. There is a recipe for consommé at the attached link (I had to delete it from the previous version of this answer because the authors of the web site do not want it copied).
Meat is made of muscles.
You can tell when spinach is bad by looking for wilting, yellowing, or slimy leaves, and by smelling for a sour or off odor.