Turns out that the plastic tags and twists on loafs of bread aren't just for looking pretty, they are coded to indicate what day the bread was baked on, writes Wise Bread. The most commonly-used code for 5-day a week delivery is is blue for Monday, green for Tuesday, red for Thursday, white for Friday, and yellow for Saturday. It's a nifty 'and now you know' factoid, though it probably won't save you from getting a stale loaf, because the shelf stockers for whom the code was designed are already doing that for you.
Breaking the Bread Code: How to Get the Freshest Loaf [WiseBread]
Soured Dough? [Snopes]