Complex sentence: Some believe that the contents of the can boil and flavor the food with the consequent vapor, but closer examination and rigorous tests have shown this to be highly unlikely, with one critic calling the practice "dangerous" and "a waste of good beer".
Split into simpler sentences: Some believe that the contents of the can boil and flavor the food with the consequent vapor. Some tests have shown this to be highly unlikely, with one critic calling the practice "dangerous" and "a waste of good beer".