Boiling condensed milk. I've read some older threads about this and the only worry seemed to be the can exploding. However, I've read something recently about the concern of chemicals in the can lining that end up in the final product.
Does anyone have any information on whether or not that's true? I just found a site where the woman put the milk into canning jars, sealed them and put them in her crock pot, covered with hot water and cook on high for 4 hours. I'm thinking that may be a better, safer way to go.