I recently went through my freezer and took out some items that I knew needed to be cooked. I found what appeared to be flank steak in a Ziploc bag. I marinated it all day today in my yummy, tasty concoction. After grilling it, though, I sliced it and served it to the hubby because he had to hurry off to work. The poor guy could hardly chew it! I sliced it against the grain just like you're supposed to. After observing him trying in vain to bite into/chew that meat, a horrible thought came to me- not flank steak...brisket! Is there some very obvious difference between the two cuts that I could have looked for? Besides the fact that I should have labeled the bag when I froze the meat, how would I have known?