The label and brandname. A natty PB jar's ingredient label should read the same if it's from a store brand, or name brand. If ti says anything other than, Peanuts, it's not natural. Maybe some palm/peanut oil and salt, but that's it.
I prefer to use my $35 blender, a jar of Planters, and make my own. Easy and cheap. Clean-up does suck, but a spray with some hot water and it all washes off. I can also add other flavors if I want, vanilla, cocoa, whatever...
Mt Snow, VT - May 5, 2012 - Completed!
Gunstock, NH - June 1, 2013 - Completed!
...i remain, he who remains to be...