So it's lunch time right now and I have an already-made pizza from trader joe's that I'm thinking about warming up. It has a label on it that says "best by 2/20" but I think that label is a bit ambiguous. Does it mean that the last day I can eat it is 2/20 or that by 2/20 it's no longer fresh, making yesterday (2/19) the last day it could've been eaten?