That's what OP sacks (odor proof) are for. I especially use them for my dog's food because if I can smell his kibble through a freezer bag, certainly a bear could! I don't know about a bear, but my dog can't smell his food through the OP sack. OP sacks are an essential part of the Ursack system.

Of course your hands can transfer the smell to the outside of the OP sack after a while, so they are not 100% effective.

PS: There is no such thing as a dumb question; the only thing dumb is not asking the question!