How long can Costco bagels and muffins last?

Muffins and bagels are good as long as they look and smell good. Bagels, especially, might get stale (tough and hard to chew). The exact time will vary depending on your climate and such. I'd guess in most cases they'd last around a week or two. read more

Costco bagels and muffins are fresh and have no preservatives. They should last 4–5 days. They freeze very well; meaning if you freeze them, they don't taste previously frozen. read more

My experience is that if you keep the bagels in a paper bag that absorbs some of their immediate post-baking moisture, and then keep that closely covered in a closed plastic bag, at room temperature, the bagels may last almost a week. read more