If you spend enough time backpacking in the Sierra, Yosemite, or along the John Muir Trail, one piece of gear becomes unavoidable: the bear can.
The idea is simple. Protect your food. Protect wildlife. Prevent bears from associating humans with meals.
But the day-to-day experience of living with a bear canister is rarely discussed.
They’re bulky. They eat up pack space. And if you’ve ever tried opening a BearVault with cold fingers after a long day hiking, you already know it can turn into a small battle.
Most guides stop at explaining the rules. This one goes further.
We’re going to talk about how hikers actually live with bear cans on trail:
-
how to pack them efficiently
-
how to open stubborn lids without destroying your thumbs
-
and how to build a simple system so the tool you need is always accessible
Because once you dial in a few small details, bear cans stop being annoying and start becoming just another piece of your kit.
What Is a Bear Can (And Why You Need One)
A bear can is a hard-sided container designed to keep bears from accessing food and scented items while backpacking. You’ll also hear people call them bear barrels or bear canisters. They all mean the same thing.
These containers are tested to withstand attempts from bears and approved by the Interagency Grizzly Bear Committee.
Many wilderness areas require them.
The Sierra Nevada is one of the best examples.
Black bears in places like Yosemite and Kings Canyon became incredibly skilled at stealing food from backpackers. Traditional bear hangs stopped working. Bears learned how to climb trees, chew ropes, and break branches.
Eventually the parks adopted a simpler strategy: remove the reward.
Today many Sierra destinations require approved bear cans, including:
-
Yosemite National Park
-
Sequoia and Kings Canyon National Parks
-
much of the John Muir Trail
-
Rae Lakes Loop
-
Desolation Wilderness
You can always read up the official Yosemite food storage rules for more info. When food is secured inside a bear can, bears stop associating campsites with easy meals. Over time that keeps both hikers and wildlife safer.
And once you get used to carrying one, it honestly becomes just another part of your kit.
The Most Common Bear Can: BearVault
If you ask ten backpackers what bear can they carry, chances are several will say BearVault.
BearVault canisters are widely used because they’re relatively lightweight, transparent, and easy to pack.
Two models dominate Sierra trails:
|
Model |
Capacity |
Typical Use |
|
BV450 |
~3–4 days food |
Weekend trips |
|
BV500 |
~6–7 days food |
Longer trips or JMT sections |
The transparent plastic might seem like a small detail, but it’s surprisingly helpful.
When you’re digging around for dinner after a long day, being able to actually see your food makes life easier.
The wide opening also helps with packing.
But BearVault containers have one quirk nearly every hiker encounters eventually.
The lid.
Why BearVault Lids Can Be Hard to Open
BearVault containers use a locking tab system built into the lid.
To open it you have to press a small plastic tab inward while rotating the lid.
The system works well for keeping animals out, but it’s not always friendly to tired hikers.
The problem usually shows up when:
-
your hands are cold
-
your fingernails are trimmed short
-
the plastic stiffens in colder temperatures
Suddenly that tiny tab feels impossible to press.
If you’ve ever sat at camp poking the lid with your fingernail for several minutes, you’re not alone.
Which brings up a common search question.
How do you actually open these things without wrecking your thumbs?
How to Open a Bear Canister (Especially a BearVault)
Opening a bear canister varies slightly depending on the model, but BearVault containers are the most common hikers deal with.
Standard BearVault opening method
To open a BearVault:
-
Locate the plastic locking tab on the lid
-
Press the tab inward toward the center
-
Rotate the lid counterclockwise
-
Repeat for the second locking tab
When the tabs are pressed fully inward, the lid rotates freely.
Simple in theory.
Less simple when your fingers are cold after ten hours of hiking.
The coin trick
Many hikers carry a coin to press the tab.
A quarter works well because it’s thin and sturdy.
Other common trail solutions include:
-
tent stake tips
-
house keys
-
multitool edges
The extra leverage helps push the tab down without relying on fingernails.
The downside?
Coins disappear easily inside backpacks.
Eventually most experienced hikers move to a small dedicated tool.
The Simple Tool Many Backpackers Carry
A small BearVault opener gives you leverage to press the locking tab quickly.
Instead of digging at plastic with your fingernail, you press the tab with the tool and twist the lid.
It sounds like a tiny upgrade, but after a week on trail it makes a noticeable difference.
Many hikers carry something purpose-built like the Bear Can Key.
A tool like this works well because it’s:
-
lightweight
-
easy to grip
-
sized specifically for the BearVault tab
Give Your Bear Can Key a Home
One mistake new backpackers make is tossing small gear into random pockets.
Eventually things get lost. Our Bear Can Key is attached to the top of your bear can so you won’t have to worry about which pocket you slipped it into when meal times roll around.
How to Pack a Bear Can Efficiently
Packing a bear can well is an underrated skill.
Two hikers carrying the same BV500 can fit completely different amounts of food inside.
The difference comes down to packing strategy.
Remove excess packaging
Food packaging wastes a surprising amount of space.
Repack meals into zip bags or vacuum bags before your trip.
Flatten everything.
Instant rice, tortillas, and dehydrated meals all compress well.
Pack like a puzzle
Experienced hikers treat their bear can like a game of Tetris.
Start with dense items at the bottom.
Fill gaps with flexible foods.
Keep the first day’s meals near the top.
With practice you can often add an extra day of food capacity.
Store smellables too
Bear cans aren’t just for food.
Anything scented should go inside.
Common items include:
-
toothpaste
-
sunscreen
-
lip balm
-
trash
-
electrolyte mixes
If it smells, it goes in the bear can.
Where to Carry a Bear Can in Your Pack
Where the can sits inside your backpack affects comfort more than many hikers realize.
Inside the pack
Most modern backpacking packs are designed to hold bear cans vertically inside the main compartment.
This keeps weight centered and stable.
For many hikers this is the most comfortable setup.
Horizontal placement
Some hikers place the can horizontally near the top of the pack.
This works best with smaller cans like the BV450.
Strapped to the top
Strapping a bear barrel to the top of your pack works in a pinch.
But it raises your center of gravity and can feel unstable.
Most hikers treat this as a backup option.
Common Bear Can Mistakes
Even experienced backpackers occasionally make these.
Bringing too much packaging
Bulky food packaging wastes valuable space.
Repack meals at home before the trip.
Forgetting the opener
Trying to open a BearVault without a tool can turn dinner into a frustrating experience.
A small dedicated opener solves the problem.
Placing the can too close to camp
Standard practice is storing the can about 100 feet away from where you sleep.
Set it on flat ground so animals can’t roll it downhill.
The Forest Service also provides guidance on safe food storage practices.
FAQ: Bear Canister Questions Backpackers Ask
What is a bear can?
A bear can is a hard-sided container designed to keep bears from accessing food and scented items while backpacking. Many national parks require them in areas where bears are active.
What is the difference between a bear can and a bear barrel?
There is no real difference. Bear can, bear barrel, and bear canister are all common names for the same type of bear-resistant food storage container.
How do you open a BearVault canister?
To open a BearVault, press the locking tab inward while rotating the lid. Many hikers use a coin or small tool to push the tab down more easily.
What is a Bear Can Key?
A bear can key is a small tool designed to press the locking tabs on BearVault lids so the canister can be opened quickly without using fingernails.
Do you need a bear can on the John Muir Trail?
Yes. Large sections of the John Muir Trail require approved bear-resistant food containers.
How far should a bear can be placed from camp?
Most backpackers place their bear can about 100 feet away from their sleeping area to reduce the chance of animals approaching camp.
Final Thoughts: Bear Cans Get Easier With a System
Most hikers don’t love carrying a bear can at first.
They’re bulky. They take up space. And opening them after a long day can feel like solving a puzzle.
But once you build a simple system, they become far less annoying.
Pack your food efficiently.
Store smellables correctly.
Tiny adjustments like that make life on trail smoother.
And when you’re sitting on a rock watching the sunset with dinner in hand, the last thing you want is a lid that won’t open.
