some cheeses are appropriate for multiday trips.
Grated and grating cheeses (moisture content 34 percent or less) Parmesan and Romano do not need refrigeration.
Hard cheeses (moisture content 36 to 43 percent) Cheddar, Colby, and Swiss can go without refrigeration for up to a week. Over time, high temperatures result in oiling off of liquefied milk fat. Though unsightly, this is not a spoilage problem. Waxed bricks or wheels hold up best.
Semisoft cheeses (moisture content 44 to 52 percent) Brie, Camembert, blue cheese, Monterey Jack, and Muenster should be refrigerated.
Soft cheeses (moisture content greater than 50 percent) Cream cheese, ricotta, and cottage cheese require refrigeration for long-term storage.
Milk Most people take powdered milk to conserve weight. UHT (ultra-high-temperature pasteurized) milk such as Parmalat can be carried for months unopened without refrigeration. Once opened, the UHT milk must be refrigerated, but if you use it up at one meal, it’s fine.
Clarified butter Butter with the milk solids removed. It will last up to three weeks unrefrigerated.
Margarine/oils Famous (or infamous) Squeeze Parkay lasts for several weeks unrefrigerated. Or you can bring olive, sesame, or other oils to cook with instead of butter or margarine.
Meats
Hard salami, pepperoni, smoked meats, and jerky all last for weeks without refrigeration.
Canned meats and fish last “almost” forever.
Eggs
It used to be suggested that eggs could be carried unrefrigerated on trips if kept in water. Because of increases in Salmonella bacteria in chickens and the need for eggs to be cooked completely to kill the bacteria, this is no longer recommended.
TRICKS OF THE TRAIL
Cook before you go A number of delicious meals or add-ons can be made ahead of time and packed with you. Fresh breads, biscuits, muffins, and deserts can add a lot to a trip. Cold salads such as bean salad, houmous, and tabouli can also be made ahead of time.
Pre-cook and freeze For special meals early in the trip you can pre-cook meals and freeze them in a plastic container. Seal the container well with tape. The food will slowly melt, but should be fine for the first 24 hours. Reheat on the stove for a quick dinner.
Everyone has different preferences for mealtimes. When hiking, you are expending energy all the time, so you constantly need to replenish that energy. This typically means eating three meals a day. Some people prefer to get up, have a light breakfast, get an early start, and then stop for a bigger meal at midday. Whatever your preference, you should have an ample supply of water and snacks during the day to keep up your energy level. Remember that more falls and injuries take place on hiking trips around 11:00 A.M. and again at 3:00 P.M. than at any other time because blood sugar is low and people are dehydrated. Plan snacks and rest breaks around these times. (See “Safety and Emergency Procedures.”)
It is also important to take into consideration the different eating habits of the group members. There may be people with food allergies, vegetarians, and those who keep kosher. It is also important to plan a variety of foods, especially for longer trips. Asking trip members about specific dietary needs before shopping will help make everyone on the trip feel included. Finally, a tip for cooking for people with particular dietary restrictions: cook whatever food cannot be eaten by everyone separately. Put it aside in a separate dish for people to add to their own plates.
GENERAL COOKING GUIDELINES, INGREDIENTS, AND RECIPES
Hygiene Before anyone handles food, make sure the person washes his or her hands thoroughly (see “Keeping Clean on the Trail,”).
Avoid Burning Your Meals Cooking on a backpacking stove is a challenging affair, since some stoves don’t simmer well and none offers the same control as a kitchen stove. Start with a clean pot to avoid burning last night’s dinner. Turn the stove on full only when you are boiling water. Otherwise, turn it down to let the food cook slowly and evenly. It may take longer to cook, but once you burn food in the pot, you’ll taste it the rest of the meal. Check periodically to see if food is sticking to the bottom. If so, turn down the heat or add water. If you are using large pots or frying pans over a small stove burner, you may need to move the pot around frequently to make sure the heat is distributed evenly.
Avoid Overcooking or Undercooking The major cause of overcooking or undercooking is adding ingredients in the wrong order. Start with freeze-dried foods first in cold water and boil for 10 to 15 minutes to re-hydrate. Next add rice or pasta. The last thing to add is thickeners like flour, potato pearls, milk, or cheese.
Spices Spices bring your meal to life. Remember that many sauces, dehydrated soups, and other stocks are already salty. It is best to let people add their own salt when the food is done, rather than oversalt while you’re cooking. Use only a little bit of spice at a time. It takes 5 to 10 minutes for spices to flavor food, so wait and taste before adding more.
Pots If you have extra pots, put water on the stove to boil for hot drinks as soon as you take the dinner pot off. This will also give you hot water for washing.
Leftovers Any solid food left over should be placed in a plastic bag and packed out. Do not bury solid food waste; animals will only dig it up.
Don’t Pack Fuel Near Food Fuel vapors are heavier than air and sink in your pack. They can penetrate plastic bags and contaminate food like trail mix. Food contaminated with fuel is considered a toxic substance and enough of it can make you sick. Carry fuel in an outside pocket of your pack away from food or in the bottom of your pack with the food packed higher up.
Cooking at Altitude At higher altitudes, the air pressure is lower. This allows water to boil at lower temperatures, so you’ll need to plan longer cooking times. For foods that cook in 20 minutes or less at sea level, add 1 minute of cooking time for each 1,000 feet (310 meters) of elevation. For items that take more than 20 minutes at sea level, add 2 minutes of cooking time for each 1,000 feet (310 meters) of elevation. Something that takes 20 minutes to cook at sea level can take twice as long (40 minutes) to cook at 10,000 feet (3,048 meters). This also means that you may need significantly more stove fuel if your trip is at high altitude.
| Elevation | Boiling Point of Water | Cooking Time |
| Sea level | 212°F (100°C) | 10 minutes |
| 5,000 feet (1,524 meters) | 203°F (95°C) | 15 minutes |
| 7,500 feet (2,286 meters) |
|
