There are several ways to keep bears from getting at your food. Hanging is one and is also the lightest weight way. Other alternatives are bear-resistant food bags such as the Ursak and bear canisters.

In several parts of the western U.S., bear canisters are required by the managing agency and you can be subject to a stiff fine and banishment from the trail if you don't have one.

Bears are quick learners and many have figured out how to get hung food down from where it is hung. That is why bear canisters are required; the local bears have figured out how to get hung food.

I note that you are in Minnesota. I am not aware of any part of Minnesota that requires bear canisters so you should be all right if you carefully hang your food. Google the PCT hang for the best way to protect your food.