My answer, based on personal experience in the Sierra and Rockies over 40 years, is no, not at the level you describe. Caveat -- I don't have experience eating in a dining tent, or on a picnic table, or anyplace where many other people regularly eat. You may scrupulously clean up as you have described, but many others may not have and spills and food ...
Are black bears attracted to trace amounts of food?
The short answer seems to be yes.
If any animal could smell trace amounts of food, then bears definitively qualify.
Smelling is a bear’s go-to sense, on par with us humans and our eyesight. Bears are known to be able to smell 100 times better than your dog, while your dog is able to sniff out snacks and ...
Let's take a different approach and look at the physics number of moving the mass of a 66 kg person 1000 m up.
The equation for energy expenditure is force x distance or, in this case, mass x acceleration x distance. Plugging in the numbers at 66 x 9.8 x 1000, you get
Wow! That's a lot. However, that is not calories which are the energy ...
Short answer: Each 100m of elevation gain is as much effort as 0.8km of running (in terms of calories). Depending on speed, terrain, inclination, climbing efficacy etc. it may go down to an equivalency running/hiking 0.4km.
Each 100m of elevation gain equals adding 0.4km to your hike, according to several hiking calculators:
10km + ...