Butts are the top of the pigs shoulder, separated from the lower front leg. They are called Butts, short or Boston Butt because a couple hundred years ago, pork upper shoulders processed in Boston were packed in wooden kegs called " Butts " for transportation. What was left, the lower front leg called " Shoulder " is a name residual from when the entire piece, leg and true shoulder, was often kept, sold and shipped together. The term " Picnic or Picnic Ham " comes from the lower front leg resembling the rear leg, Ham, but smaller, making it more suited for transporting and eating by just a few people on a " Picnic. " Most of these names began to be standardized starting in 1942 buy meat purveyors selling to restaurant and hotels. This guaranteed buyers and distributors would all be talking the same language. Since the processors that sell to restaurants and hotels also began selling to the growing number of local and national Grocery Store chains, the meat cut names were seen at the Stores as well. To further add to the confusion, Grocery stores will make up names for marketing and to designate cuts or portions taken from the larger portions.
So basically the confusion on Pork Cuts has gone on for a couple generations. Recently, last year to early this year, all these guys, processors, distributors and retail outlets, through consolidation of the various meat related associations, has decided to change these names to end this confusion and incorporate a whole bunch of new, " Value Added " cut names, an excuse to take a small muscle or portion of a muscle out of a $1.49 per pound Boston Butt or $3.99 a pound Beef Chuck, and charge $4.99 to $9.99+ a pound calling it STEAK. While these name changes will eliminate the confusion of calling a Pigs true Shoulder it's Butt, you will be ADDING confusion to anyone going to the store and staring in the meat case that was born between 1942 and 2014...Which just happens to be EVERYBODY! I hope this helps....JJ