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Bear can misery

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Paul Wagner BPL Member
PostedApr 1, 2014 at 10:32 am

Packing a bear canister can be a bear. And it got even worse for this hiker in the Emigrant Wilderness. Check out his trip report from earlier this month….

"I was so jazzed to be going backpacking last weekend. We had our permit for Leavitt Meadows, heading up over Dorothy Pass into some really great country. But it turned out to be the trip from hell….

Following the suggestions I'd read on a lot of different backpacking site, including https://sites.google.com/site/backpackthesierra/home/our-blog/packingthebearcan I had carefully repacked all of our food into baggies and packed them tightly into our BearVault 450 bear canister. It was a tight fit, but I got it all in, and I didn't have to use 2×4 for leverage like I do sometimes.

But it didn't work out that well once we got up to our campsite at frozen Stella Lake at 10,000 feet. It had been a long cold day on the trail, with a little drizzle, and we were both starving and slightly hypothermic. And I could not get the bear can opened. I tried everything, but the lid just wouldn't move.

I asked Big Walter, my hiking partner, if he could give it a try, since he is six foot five and mainly muscle. He grunted hard, his tongue wedged tightly between his lips. Beads of sweat appeared and then froze on his forehead. The lid wouldn't budge.

The more we tried, the less it moved. I realized that the zip-lock bags that I had packed at sea level were now completely expanded at 10,000 feet, and the pressure against the lid of the bear can was so strong and it was jamming the lid in place. Stuck fast. And we were now fasting.

We had just hiked 12 miles to get up here, and now we had no food to eat. And just so you know, those damn BearVaults work pretty well. They are not only bear proof–they are also hiker proof.

I tried forcing a small knife into the lid–and broke the blade off my only knife. I got so frustrated that I threw the whole can against rocks over and over….to no avail.

The inflated plastic bags were indestructible inside the can…and the can couldn't be opened because of the bags. We had to reduce the pressure in those bags before we could get the can opened.

Big Walter was furious, and you don't want to be around Big Walter when he gets angry. Which is right where I was.

Then I had an idea. If we could get then can into the lake and we could hold it deep enough under water, the pressure from the water would compensate for the lower air pressure at altitude. The zip lock bags would deflate a bit, and we could get the lid off.

Big Walter said it was a great idea, and I handed him the bear can. He handed it back to me and told me to take a deep breath. Then he picked me up and carried me out onto the ice of Stella Lake. Big Walter held me under his left arm while he chopped a hole in the ice with his hatchet.

I tried to protest, but Big Walter had my arms pinned.

Once the hole was big enough, Big Walter grabbed me by the ankles and shoved me headfirst under the ice.

It was remarkably cold.

I tried screaming, but my throat froze solid before I could get any sound out at all.

I looked around wildly for some way to escape, but Big Walter had my ankles in a steel grip. I couldn't breathe, I couldn't scream. I was going to die.

Suddenly, he yanked me back out again. I gasped and sputtered while he looked at the bear can. I hadn't even thought to try to open it.

Big Walter studied my face for a minute and shoved me back under the ice.

This time I got the message. To my amazement, the water had penetrated the bear can and relieved the pressure against the lid. I managed to turn the lid just enough to get it past the two locks before my hands stopped working and my breath gave out. The world went black.

The next thing I remember, I was smelling smoke. Smoke and Chili Mac with Beef. I couldn't see–because my eyelids were frozen shut. I couldn't move my arms or legs, but I felt like I was seasick.

Finally, the ice on my eyelids melted, and I managed to get one eye opened.

The world was upside down. There was fire above me, and blue sky below. Everything was moving in my head. I looked down at my feet to see Big Walter holding my legs. He was waving me over a fire like a popsicle. And there was a pot of Chili Mac on the fire as well. The smoke may have come from my wool cap. It was hard to tell.

Big Walter smiled at me. "You got it open," he said happily.

I tried to smile back, but my face was frozen.

Marko Botsaris BPL Member
PostedApr 1, 2014 at 11:57 am

Nice story and well told! At least we know now that Bearvaults are people-resistant too.

I hate the bearvault lid, and even with the damn credit card trick I find them a pain. But I hadn't ever heard of a pressure issue, that's a new one. Maybe a needle sized hole in all the bags next time.

Another strategy might have been to goad "Big Walter" in to bezerker mode. Maybe he could then crack it open somehow with his momentary bezerker +10 strength buff. At the very least it might keep him from bashing you. :-0

Bob Gross BPL Member
PostedApr 1, 2014 at 12:39 pm

With the very same model of bear canister, a buddy and I had gone to the old secret lake in Yosemite. He had loaded his food along with a small bottle of olive oil. Unfortunately, he left a big air bubble in the bottle. When we got to camp near 9000', he tried to open the canister. Well, the bubble had expanded due to pressure change, and it leaked the olive oil into all of the food bags. Worse, some leaked into the crack between the canister and its lid. Then when we tried to twist the lid off, our hands were oily, so nothing worked.

It was necessary to use every bit of clean clothing to wipe the canister clean enough. Then by sitting down on a log with the canister clamped between two knees, it took four hands to finally twist off the lid after about an hour of teeth-gnashing.

The moral is: be very careful the way you package your olive oil. Also, maybe tighten the lid only 99%.

–B.G.–

Dena Kelley BPL Member
PostedApr 1, 2014 at 12:58 pm

Great story. I, too, detest the locking mechanism on the Bearvault. I usually have to get out my SAK and use the screwdriver to press in the tab, because (particularly if my hands are cold) it hurts my fingers to do it.

PostedApr 1, 2014 at 1:03 pm

… and that's why chocolate covered cherries get trucked around the mountains instead of over them. At least that's what my uncle, the trucker, told me.

Russell Stover says that "the internal air pocket left when the fondant liquefies can cause the candies to explode if you take them on your next high-altitude backpacking trip."

Bob Gross BPL Member
PostedApr 1, 2014 at 1:19 pm

"use the screwdriver to press in the tab, because (particularly if my hands are cold) it hurts my fingers to do it."

I found that I can push the tab in pretty easily if I use my thumbnail.

–B.G.–

Stephen Barber BPL Member
PostedApr 1, 2014 at 1:26 pm

A regular Swiss Army knife has an awl, which can be used to drill holes through wood, plastic, carbon, and some metals. Perhaps that awl could drill the 1/64th inch hole (actually it would be bigger)Rodger Dodger mentions.

Jerry Adams BPL Member
PostedApr 1, 2014 at 1:58 pm

ha, ha, ha!

I have the same problem. I just leave it about 1 turn shy of tight.

No need to go past the lock. I just use the canister for rodents and rangers.

Good story – sometimes better communicating than "left brain" explanation.

Not drawing any comparison between rodents and rangers.

Raccoons too.

Charles Grier BPL Member
PostedApr 1, 2014 at 2:49 pm

If one makes a single pin hole in each sealed packet before stuffing it into the bear can you can: 1) get more stuff into the canister and; 2) avoid the expanding bag issue.

I lived in Flagstaff, AZ (7000' elev.) for six years. At that time, all of the ice cream sold in Flagstaff was made in Phoenix or some other lowland city. By the time this ice cream reached Flagstaff, the included air expanded the ice cream enough to nearly push the lid off of the container. It still tasted good though.

Dena Kelley BPL Member
PostedApr 2, 2014 at 10:00 am

"Does no one else realize what day it is? Nice story. :)"


Of course I realized the story was made up (at least once he got to the point about being forced under water by his hiking buddy), but it did have a basis in truth and that's what sparked the conversation (I thought, anyway). It was a cute story, and gave me an excuse to gripe about how hard it is to open my BV.

Kevin Burton BPL Member
PostedApr 2, 2014 at 2:37 pm

It's plastic. Relatively low melting point. Seems like a solution would be to heat a tent pole up in a fire and use it to melt a hole in the side of the plastic and then popping a bag.

Bingo… now you have food.

Bob Gross BPL Member
PostedApr 2, 2014 at 2:40 pm

You better hope that your tent poles are made out of metal and not out of carbon fiber.

–B.G.–

PostedApr 2, 2014 at 2:53 pm

I never use zip-locks for that reason.
(and the fact that I am zip-lock challenged… never seem to be able to get them to match up right)
I use the freezer bags that come with twist ties.
Leave the ties at home. Close the bag with a very lose over hand knot.
Easy to get open and does not expand when going to altitude.

Fun story.

Billy

PostedApr 2, 2014 at 2:56 pm

And I might add… I don't own a BearVault… but first time I ever looked at them I figured that screw-on top would be a problem to get open… either from pressure from inside (expanding bags and/or over packing), or from grit in the thread tracks.

Billy

Steve B BPL Member
PostedApr 2, 2014 at 7:26 pm

I use the bulk food bags from your local health food store. All the granola in one, orza pasta in another, etc. They flatten very well. 10 days of food inside a Weekender Bearikade.

Steve

PostedApr 3, 2014 at 8:13 am

The real joke will be on all the FBC people with holes poked in their bags now ;)

Chris . BPL Member
PostedApr 7, 2014 at 8:07 pm

I never turn mine all the way until I go to bed, even when sitting on it, either.

Justin Baker BPL Member
PostedApr 9, 2014 at 6:45 pm

I have had this happen but I was eventually able to get it open. My canister was stuffed full and overfilling. I forced down the food with my bear vault lid and closed it. Bad idea.

David Moreno BPL Member
PostedMay 6, 2014 at 2:26 am

I'm just now reading this thread on May 6th, but was thinking the same thing. I hope none of the freezer bag cookers like myself would actually pokes holes in their freezer bags. LOL

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