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101

There are several reasons why I think rationing is useful. Morale - If you eat all your food on the first day you won't have anything to look forward to. If you eat a little bit twice a day you can look forward to your next morsel instead of regretting eating all your food. Meals become a break in the monotony and something pleasant you know will be coming. ...


86

Just because there are grasses (Poaceae) with edible and nutritious parts does not mean that this applies to all grasses. That is pretty common-place. A quick Google search give you all the info you need: Many grasses are edible, in the sense that you can eat it; you simply won't get any energy/nutrients out of it. They consist mostly of cellulose, and ...


52

Aside from the previously mentioned micronutrients, your body doesn’t really store protein in any significant way, so in order to ‘repair’ your body you need a relatively constant stream of protein (or rather, amino-acids). Nothing bad happens if you fast for a short while, but it does mean you will obtain amino acids from breaking down your own muscle which ...


49

Short answer: A cooler containing more ice and less frozen food will last longer than a cooler containing all frozen food. With frozen contents of a given mass, the length of time a cooler will stay cold is proportional to the latent heat of fusion of the contents. The latent heat of fusion of water ice is 334 joules per gram. ASHRAE (the American Society ...


47

Couple of ways to do this, Powdered milk, has a shelf life of over a year and just needs water added to it. Evaporated milk, milk with over 60% of the water removed before being canned. Sweetened condensed milk, basically the same as the above just with lots of sugar added. Powdered milk is the lightest and can be made in small batches while the others ...


46

One solution to your problem is UHT (ultra-high-temperature) milk. UHT milk has been treated at a high temperature to kill all bacteria, making it shelf-stable for at least 6 months. Once opened, however, UHT milk needs to be refrigerated just like normal milk. If you're used to the taste of pasteurized/homogenized milk, UHT milk tastes a little different --...


43

Lots of people have posted answers saying what they like to eat. However, the OP asked a very specific question, which was: "What is the most efficient food to take a for a 12-15 day hiking trip? [...] Assume I have no taste at all and don't care about eating the same tasteless thing every day if necessary." She specifically stated that her only criterion ...


38

As a former soldier (and Medic), I personally don't flavour my water during the outdoors. The contents of the canteen/flask might be required for a non-drinking purpose such as: Eyewash Rinsing Medical Cleaning etc However, I do flavour my water on a day-to-day basis for the gym etc using super-concentrate micro capsules such as Squash'd If you have ...


33

The term you're looking for is "low-residue diet" or "low-residue meal" (for some reason, the medical community tends to avoid the term "poop" in their technical terminology). Simply googling on those terms will get you a lot of good advice; WebMD and Wikipedia are good starting points. A low residue diet is a diet designed to reduce the frequency and ...


31

There are many nutrients that your body cannot store, or not in decent extra amounts. Water, salt, potassium, vitamin C, etc. You will rapidly excrete these, and then greatly feel the lack of them when you are fasting for days. Yes, you can to some extent gorge yourself on macronutrients (fat, carbs, protein) because these will be stored as body fat ...


30

Basically tin foil is your friend! Even though you could also place some of these foods directly on the embers, if you're willing to carry some tin foil and do a little bit of preparation, you can create some awesome meals on a campfire. Potatoes Image by Ryan Dickey Slice them open unpeeled and fill them with cream cheese Season with salt, chives, ...


30

Here in Slovenia, the use of wild garlic is quite widespread. Although the whole plant, including bulbs, is edible, leaves are most commonly used. I tried only leaves so far, so I can share my experience with only them. Gathering Young, light-green leaves are a bit more aromatic, but smaller; older are darker and larger. I pick a mix of both and look for ...


30

If you look for the manufacturer's promises for these "passive" boxes (there is absolutely no cooling, just the attempt to keep the cool in - called isolation), they usually state something around 24h to keep things cool. You don't even have to start thinking how the manufacturer got to this number. There is no way to use it in the way you proposed because ...


29

The simple answer is that yes it does make sense to ration, see the stories of the men who survived the Essex or the Mutiny on the Bounty or the Chilean Miners or many countries during wartime. From a mathematic point of view, one rations when does not have enough food for the timeframe between now and a resupply. If you eat enough to be full all the time, ...


26

Cheese: Long time. Especially hard cheeses. You can just cut any mold off the edge that might creep up. Cheeses sealed in cheese wax (gouda) are a good bet. I've had extra-sharp cheddar un-refrigerated in the AZ desert for 8+ days, in the rocky mountains for 15+ days with no issues (aside from sweat.) Blocks last longer than a pile of shredded cheese. Be ...


26

Avoid Putting cheese in plastic bags. Ever. Mold guaranteed. The cheese should receive enough air and shouldn't get wet. Cutting a big piece into smaller pieces (for easier service, you know). First, you break the wax or vacuum bag, second, now you have much more surface and much more to cut if mold happens. Best practices If you can, prefer cheese sealed ...


26

What I've always understood to be the rationale, and doesn't seem to be directly addressed with the other answers, is that the human body adjusts its metabolism to its resources. If you gorge on all your food, you're signalling to your body that there's plenty of food. If you eat only a little bit a day, you signal to your body that it should go into ...


24

I am pretty certain that this is what you are looking for, Image Source Two tablespoons (32g) of the stuff has 8g of protein and 16g of fat. Source It easy to carry, does not require refrigeration or cooking. Typically I eat it straight out of the jar with a spoon and can go through one of the jars pictured in about a week. Yes, it does get old after a ...


24

Eating grass isn't smart because our bodies lack the enzymes to digest it, and because you never know if some animal came along and crapped on it. Don't eat grass.


24

Theoretically, it might be possible to survive on fish, rainwater and desalinated seawater. In one 1930 experiment, two men survived for a year eating exclusively meat without experiencing any health issues. This indirectly suggests that meat (and therefore possibly also fish) contain all the essential nutrients, but this was a small and relatively short ...


23

The first solution that comes to mind is a "zeer", or pot-in-pot refrigerator. However, this functions best in hot and dry environments as it relies on evaporation to work. Such a device is constructed by nesting one clay pot inside another, with a layer of sand between them (about an inch on the bottom, a few inches on the sides). The sand is then soaked ...


23

Cooking raw brats over a fire is only dodgy because cooking brats well requires fairly precise (for a campfire) temperature control. Even with hot dogs, it can be a bit challenging to get the whole thing consistently cooked through without burning the outside. With a bratwurst, its larger size makes that especially difficult without some skill or tools. If ...


22

If it's intact and undamaged it should be fine. After all they're grown outdoors (in your climate and mine related species like pumpkins may do better). Growers do suffer some losses but that's over the whole growing season. If you do attract rodents or similar creatures, they're not coming from far away, so it's not like you'd be bringing them into the ...


21

I've been involved with hiking/trekking clubs around my area here. I was what they call chief guide for a few years (responsible for organizing trips and lead some of them together with other club members). One of the clubs I used to be involved was an university club and as such we had heaps of exchange students. In all those trips, we always had the ...


20

Another one would be Damper, an Australian bush bread traditionally cooked in the hot ashes of a dying fire, with or without tin-foil (just don’t eat the crust). It has a pretty delicious smokey taste and is fun to make with the kids. I won’t suggest a particular recipe because there are so many variations. The core is just flour, baking soda, salt, and ...


20

I'm assuming the amount of food you want to take and your coolbox size is fixed, so the question you're asking is really whether you should fill every remaining gap with ice, or whether you should leave it as air. The answer to this is that air inside your coolbox is a big problem, and will majorly contribute to thawing. The specific heat capacity of air ...


19

I try to avoid the following: Carrying water (i.e., food that has lots of water in it). The exception is fresh fruits and vegetables, which are worth the weight in my opinion. Pre-made dehydrated backpacking crap. Overpriced and unappetizing. The key thing is that being in the backcountry shouldn't really change how you think about eating. You cook food ...


19

Nettles should be blanched to destroy the formic acid before eating (Handle with gloves of course). Bring a pot of lightly salted water to a boil & prepare a bowl of ice water on the side. Once the water is boiling, plunge the nettles in the water for no more than a minute or so (the nettles should be bright green & not over cooked). Quickly drain ...


19

The material in Owlcation, Can Caffeine Kill? How It Impacts Animals, Plants, and the Environment, updated June 23, 2018, suggests that the safest thing to do with coffee grounds, relative to the environment, is to pack them out. Caffeine has a stimulating and apparently not harmful effect on horses, birds, and bees. Caffeine is banned in horse racing and ...


18

Additional to the two great answers already given I want to share my own experience, repeating some things and adding some: Choose your Cheese carefully As already mentioned, harder cheese will last longer. Good sorts (I don´t know if available outside Europe): Parmesan, Manchego, "Bergkäse". The cheese will start to mold on the surface. Take this into ...


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