The only Thanksgiving leftovers guide you need

CNN  — 

Like an inbox filled with emails about Black Friday sales, the one thing you can count on the day after Thanksgiving is a fridge packed with leftovers.

For many, this is easily the best part of the entire holiday – but at a certain point, even the most devoted leftovers fans will question if that side dish is still OK to eat.

Some answers depend on your family traditions: If your relatives like to leave the Thanksgiving feast on the table for all to snack on during the football screen fest, you’re already in trouble. Bacteria grow fast.