Believe it or not, a bear can smell 7 times better than a bloodhound and 2,300 times better than you.
Here’s what the Bear has to say:
Even if you buy and use a high-grade, 100-percent-odor-proof bag, there are some compelling reasons not to skip the canister or bear bag. My naturally curious nature means I might investigate a freeze-dried package anyway, and the situation gets worse if I’m a habituated bear with any experience or contact with humans. I might’ve learned that humans carry around various packages that contain tasty goodness, and I may attempt to investigate them regardless of smell. Better not to give me any chance of finding a reward—it’s bad for you, and potentially catastrophic for me.
Even if you put your food in a bear it’s a good idea not to sleep with it in your tent. Hang in on a tree out of reach and away from the campsite. Make sure the wind is not blowing the scent of food towards the campsite.
If you want to take extra precautions, don’t cook at the campsite. Do it a mile or so before you set up camp because the smell can stick for hours.
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