wheels wrote:Following the mention of ribs on another thread - Brican's great definition of, "Chewing on bones" - how much meat is left on when preparing a belly for St Louis ribs?
This will help, some. On this page, you will find a diagram and series of photos of ribs being trimmed and cut.
http://www.amazingribs.com/recipes/porknography/pork_cuts.htmlI prefer the spareribs with rib tips intact and just the breastbone trimmed away, rather than the St. Louis cut, but that was all I could get, out here. A slab of 13 spareribs should have about 1/2" of meat on the outside, or slighty more - total weight about 3-4 lbs for the slab. Don't trim away all the fat, or the ribs won't self-baste.
...I know that the membrane is taken off the back of the ribs but is the flap of meat on that side also removed?
Some do and some don't. I remove the membrane so my seasonings penetrate the meat from the bone side, as well as the meat side. Some people don't. The membrane dries out and becomes somewhat tough. It is not particularly permeable, and doesn't allow excess fat to drain away. As others can attest, I make juicy, tender ribs without the membrane, so I don't put much weight on claims that leaving the membrane in place helps keep the ribs moist. I think the moistness is more temperature and technique.
The flap of meat is part of the diaphragm, it tends to be tough and chewy, but flavorful. I leave it in place. Some folks trim the diaphragm away.
... And what of the other side? Is the belly just skinned but left whole otherwise? Half the thickness of the meat removed? Or, all of the meat, leaving only that between the bones.
Spare ribs are an actual cut, here, so not just waste from, say, trimming away the belly and side meat. If you remove all of the outside meat from the ribs, leaving the ribs exposed, there won't be enough meat left to make the ribs worthwhile. As said above, there should be 1/2 - 3/4" of meat over the ribs, and reasonably fatty for cooking low and slow. Loin back ribs (or baby backs) tend to have more loin left on them - see the second pic in the other thread, where BriCan took pics of the ribs I prepared, last week - allowing for changes from cooking. On the farm, if we cut ribs, the leftover belly was used in sausage.
...Likewise the back bones, when I remove the loin for bacon is what's left what is cooked as back ribs? There seems so little meat if it is. But, leaving anything else would 'eat into' the eye of the loin?
As above, the loin back ribs are not waste from trimming for bacon. If you are harvesting loin back ribs, then you are not cutting bone-in loin chops. Most folks trim out the eye for center-cut loin chops, and shape the remaining meat between the eye and the ribs for loin back ribs.
I think the most salient point is that ribs are their own cut, here, and not leftovers after cutting down a carcass for bacon. To some degree, how much meat is left after properly trimming for ribs will depend on the pig. I don't know what commercial shops do with the trim after cutting ribs.
Baby backs, like Danish Baby Back ribs, are usually 1.5-2 lbs and from young pigs. They have smaller, thinner bones and more, sweeter, tender meat. Loin back ribs (often marketed as baby backs) will often run 2.5-3.5 lbs, and are from older, adult pigs and even overweights. The ribs will be larger with more bone-to-meat.
HTH - tom