There will be some cancer in the smoke when smoking, but it is known that this preservation has been done since time immemorial. The worst thing is that large sausage producers use various means (éčka) that can cause proliferation, and this is medically proven. And just eating 15 smoked blankets doesn't mean I smoke a pack of cigarettes. Personally, I would have to be under the turf, because homemade sausages have been eaten since I was a child, and I have been smoking for over 40 years!