You should avoid preserves, cured or smoked meat, and things with nitrates.
Meat is an organic compound.
smoked
Cured meat typically is fully cooked. However, it is best to check the packaging on the meat to be sure that it does not require extra cooking before consumption.
If the meat were cured, it would last for a few weeks. If the meat was not cured, it would on last for a couple of days.
Bacon is a cured meat made from pork. Pork is the meat of pigs.
Ham is cured pig meat.
How to cured meat
Yes, it is okay to have organic ingredients. Many gardeners will only use organic manures and fertilizers because they believe that organic ingredients are beneficial to the plants and improve the soil texture.
In Where the Red Fern Grows, the meat was cured in a smokehouse. This process involved hanging the meat over a fire to smoke it, which helped preserve it and give it a rich flavor.
It's probably okay. Even if it is mold, it can easily be trimmed off. It could also be salt(s) and/or other things that crystalized when the meat was cured.
Ham is cured pork, the meat of the pig.