i was given a 3 foot piece of polish kielbasa, or some sort of polish sausage about 3 weeks ago. it was freshly made in bloomfield nj and it was very tasty. garlicy and porky but also very moist and fatty. i was told i could let it air dry and it would harden and change texture. i used to do that with hebrew national salami when i was a kid. the outside became green but when you peeled the outside it was hard and delicious. the kielbasa has been hanging now for 3 weeks and sure enough it is green and moldy. now that i am an adult, i'm a little scared to eat it. is it safe? obviously if it smells rancid i would toss it but if it smells like garlic and looks ok when i peel it, what's your opinion?