>>442989It's not just food. It's all smellables- deodorant, chapstick, toothpaste, bug spray, sunscreen, etc. Also don't carry anything berry scented/flavored. Heard of somebody who put cherry chapstick on before bed, put the tube in the bear bag and woke up to a bear licking his lips.
You don't need to be quarter mile away. You DO want to be sleeping in separate locations from your cooking site and bear bag, arranged in a rough triangle (supposed to be) ~100yds apart. Usually mine end up being like 50 because bears aren't common so I'm defending against raccoons at that point.