Food Question: Ground Beef

I don't normally buy the Ground Beef that comes in the pre-packaged weighed tubes, where you can't actually see the meat.

I usually buy the meat in the plastic plate wrapped with cellophane.

But, they had groundchuck at 1.99 /lbs in the tube, so I grabbed a tube of it.

Anyways...I made a couple of hamburgers, but what I noticed is that you can reshape and reform these burgers but when you start cooking them, they revert to the size/shape of the tube. No matter how you manipulate it, the meat has a memory of it's shape.

What causes this? I've bought breakfast sausage in tubes, but never noticed this behavior in that meat.

Last Edited by Craazee8 on 12/04/2016 07:19 PM