this kind of shrinkage happens with fish as well and various other foods. not too surprised at this development.
"You have six different smiles. One for when you're angry. One for when you tear flesh. One for when you chew flesh. One for when you loot bodies. One for when you skin game. And one for when you want to kill something."
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Former author of the TankSpot.com Protection Paladin guide
Yeah, I'm with Pendulous here. If your "footlong" sub is within ~10% of the putative length, no biggie. Really, they should manufacture them such that the average is 12 inches, so people are occasionally getting more.
Really though, every restaurant that offers fresh baked bread, bakes it from frozen dough slugs, which pre-measured or not, the fact is that it's really impossible to predict just how much a particular loaf will expand. If you want to accurately grade that fact, you would need to control the study for atmospheric pressure, which I somehow doubt this particular study has been.
EDIT: Also, because the dough slugs are pre-measured it doesn't matter how much it ends up actually rising, the caloric value is exactly the same really. So it's not like you're getting ripped off if a dough slug, designed to rise into a 12" loaf of bread, only becomes 11" because higher atmospheric pressure when it was baked prevented it from doing so completely.
Getting less of what should be categorized as sandwich garbage is probably a good thing. Subway is the dumpster of sandwich shops.
On topic, its pretty silly to get worked up about something like that. There is usually a disclaimer explaining that you might *not* get exactly the right size or something, but as close as dammit to it.
---------- Post added 2013-01-19 at 05:24 PM ----------
(Sorry, Pulp Fiction again...)
And I haven't been in Subway for a while, but it wouldn't cross my mind to measure them. It's plenty of food either way.