Some old coffee cans can be valuable, depending on their age and condition. Antique coffee cans are often sought after by collectors, and can be worth a considerable amount of money. However, most older coffee cans are not particularly valuable, and are generally only worth a few dollars apiece. So, if you're wondering whether that old coffee can in your attic is worth anything, it's probably not going to be a fortune - but it could be worth a few bucks.