Land managers decide whether you carry a canister or hang a bag, and many now require canisters. Here is how the two methods compare on the things that matter.
Backpackers in bear country have two practical ways to protect food: a hard-sided canister or a hang. Which one your trail requires is not really your choice. Land managers decide, and many now require canisters. Here is how the two compare.
How the Two Methods Actually Work
A canister is a rigid container with a locking lid that sits on the ground away from your tent. A hang is lighter to carry and harder to do well: a bag suspended from a branch.
Many agencies rely on the Interagency Grizzly Bear Committee list, which covers nearly 500 products from more than 100 manufacturers. Each one passed a live bear test or a technical evaluation. Certification is not a promise that a bear can never get in.
Where hangs are still allowed, they come with strict numbers. In the White Mountain National Forest outside the Pemigewasset Wilderness, a bag must be at least 12 feet off the ground and 6 feet horizontally from any object. Sequoia and Kings Canyon allows only counterbalance hangs and warns that suitable trees are rare, so the method generally does not work there.
The Two Methods Side by Side
| Hard-sided canister | Bear hang | |
|---|---|---|
| Legality | Required across whole parks and some national forests | Still legal on some forest land, with strict height and distance rules |
| Reliability | High when latched and placed well | Depends entirely on execution |
| Weight and bulk | Rigid, takes fixed pack space | Little more than rope and a bag |
| Skill needed | Low; latch it and set it away from camp | High; needs the right branch and careful rigging |
| Suits | Most backpackers, park trips, groups | Experienced campers on forest routes that still allow it |
Where Hanging Is Still Legal, and Where It Is Not
In the Pemigewasset Wilderness in New Hampshire, effective May 1, 2026, all overnight campers must use a cylindrical, hard-sided, non-pliable canister certified by the Interagency Grizzly Bear Committee. Hangs are banned there because they have proven less effective, and ignoring the order can bring fines or permit revocation.
Olympic National Park requires approved hard-sided containers throughout its wilderness, and hanging is not compliant there. Other parks use zones and seasons: Sequoia and Kings Canyon requires canisters in the Rae Lakes Loop and Dusy Basin from May 1 through October 31, Bryce Canyon requires them on all overnight backcountry trips, and Canyonlands requires them in the Needles and Salt Creek from March 15 to November 30.
National forests handle this with storage orders instead. The Bitterroot National Forest has required bear-resistant containers or a vehicle on all its Montana lands. Our guide to dispersed camping on national forest and BLM land covers who issues these orders.
Before you pack, confirm three things:
- Whether a certified container is required, or whether hangs and lockers also count.
- Which containers the agency allows. Yosemite publishes a list of approved canisters and updates it as models change.
- Whether a flexible certified container is acceptable. The Pemigewasset order calls for a non-pliable canister even though the IGBC list includes soft products.
Weight, Odors, and Failure Points
A canister does not compress, so you pack around it. A hang kit is little more than rope and a bag.
Scented items belong inside either system. Marmots, squirrels, chipmunks, and mice have all chewed tents and gear in the North Cascades, so toothpaste, sunscreen, deodorant, lip balm, and garbage travel with your food, never in your tent. Olympic rangers suggest lining a canister with sealed bags to hold odor in, which also helps if the container is not waterproof.
A hang must be high enough that a bear standing on its hind legs cannot touch the bag, and far enough from the trunk that it cannot reach sideways and grab it. Canisters fail too, mostly through carelessness: a lid left unlatched, or a can stashed beside the tent. Olympic suggests placing it where it cannot roll into a stream and where you will hear a bear bumping it.
Heads up
A container that is not closed and latched is not bear resistant, certified or not. The IGBC points out that a cooler left unsecured offers no protection at all.
Renting, Sharing, and a Simple Decision Rule
You may not need to buy a canister for one trip. Sequoia and Kings Canyon rents containers at visitor centers, except Cedar Grove, through the Sequoia Parks Conservancy. Olympic may loan them from wilderness information centers, with no reservations, and supplies can run out on busy weekends.
In a group, sort storage before splitting food. Trailhead boxes are shared with strangers, locks are not permitted on them, and caching food in them is prohibited in Sequoia and Kings Canyon, so carry rope as backup.
For your next trip:
- Look up the food storage rules for every park and forest on your route, including zones and date ranges.
- If a certified canister is required anywhere on the route, carry one. A hang does not count there.
- If nothing is required, judge your camps. Legal, well-treed forest and solid technique can make a hang work; otherwise, carry a canister.
- Secure food, trash, and scented items day and night, and keep the container away from your tent.
- Food Storage in Bear Country: Lockers, Canisters and Camp Layout: how to arrange food, trash, and scented items once you reach camp.
- Dispersed Camping on National Forest and BLM Land: The Basic Rules: who issues the storage orders behind these rules.
- Leave No Trace at Camp: The Seven Principles in Practice: why secure storage protects the next campers, too.
Camp notes
- Many parks and some forests now require certified hard-sided canisters, and hanging food is no longer compliant in places like Olympic National Park and the Pemigewasset Wilderness.
- The IGBC list covers nearly 500 bear-resistant products, but certification only counts if the agency allows that container and the lid is closed properly.
- Zone and season rules matter: Sequoia and Kings Canyon requires canisters in areas like the Rae Lakes Loop from May 1 through October 31.
- Canisters win on reliability and skill; hangs win on weight, but only work where they are legal and done to the local height and distance standard.
- Rentals and loaners exist: Sequoia and Kings Canyon rents canisters at visitor centers and Olympic may loan them from wilderness information centers, supplies permitting.
Questions campers ask
Do I still need a canister if there are bear boxes at camp?
Provided food storage boxes can be an option where they exist, but in Sequoia and Kings Canyon they are shared with other hikers, locks are not permitted on them, and caching food in them is prohibited. Carry rope in case the box is full or you do not camp where you planned.
How high should a bear hang be?
Where hangs are legal, the White Mountain National Forest standard is at least 12 feet off the ground and 6 feet horizontally from any object. Standards vary by land manager, so check the rule for your specific destination.
Are soft-sided bear-resistant bags allowed instead of canisters?
It depends on the land manager. Some accept any IGBC-certified product, while orders like the Pemigewasset Wilderness requirement call for a cylindrical, hard-sided, non-pliable canister specifically.
What else goes in a bear canister?
Anything with an odor: toothpaste, sunscreen, deodorant, lip balm, and garbage. Rodents as well as bears go after scented items left in tents or packs.
Rules, fire restrictions and closures differ by park, forest and district and can change quickly. Check with the land manager before your trip. This guide is general information, not professional safety advice.
