Biological Heart Valves. Biological Heart Valves are made of tissues and valves derived from animals or human donors. Their biggest advantage is that they do not cause blood clotting on their surface and truly replicate the form and function of the normal human valve.
The biggest difference between cured and uncured is the fact that the uncured uses natural curing agents, such as celery powder, which transforms into nitrite when it is processed. Thus, uncured products have labels with: âNo Nitrates or Nitrites added except those naturally in celery powder or juiceâ.
Country hams are not fully cooked, but preserved by the cure. Smoking is not a legal requirement: some types of country ham, such as the salt-and-pepper ham of North Carolina, are not smoked. Smoking turns the meat a much redder color than unsmoked hams.