I forgot a pan with a little sausage grease in the fridge (1 1/2 to 2 weeks). The pork sausages had peppers, herbs and maybe onions in them, the grease is orange from the chilis and peppers. If I cooked them properly (350 degrees for 40-45 minutes) can the leftover grease have any risk of harbouring botulism? (I'm not going to eat it but would like to know how to I clean it safely). Would recooking the pan kill off any toxins, etc.? 

It was a metal baking pan and a knife and fork. I am only worried about botulism and I don't know if normal washing is enough if by chance it was in the fat and whether it would contaminate the sink, etc. I read about bacon fat but wondered if sausages might be different with peppers and maybe onions in them.