Food that survives a week in a pack

Most explanations of trail food stop at the point where it starts to matter. This one carries on.

Weight per calorie is the starting point

Fat provides more than twice the energy per gram of protein or carbohydrate, so fat-rich foods reduce the weight of a given number of days. That is why nuts, oils, hard cheese, cured meats and chocolate appear so consistently in multi-day food plans across different traditions. Dried food removes water, which carries no energy at all, and water is by far the heaviest component of most fresh food.

The limit is digestibility and appetite, since a diet of pure fat is unpleasant and difficult to eat in the quantities required. A practical plan therefore aims at a high energy density overall rather than at maximising it in any individual item.

Appetite does not behave as planned

Sustained effort suppresses appetite for the first days, so early meals are often left half-eaten while the same food is craved later in the trip. That reversal usually arrives together, and by the middle of a long trip most walkers can eat considerably more than they packed for. Planning identical days therefore produces surplus at the start and shortage at the end, which is the commonest food planning error.

Loading later days more heavily is awkward because it means carrying the extra weight from the beginning, which is why resupply points matter so much. Eating to a schedule rather than to appetite in the first days keeps intake up when nothing much appeals.

What actually survives being carried

Anything soft becomes a single mass, anything brittle becomes crumbs, and anything with a strong smell transfers that smell to everything nearby. Heat is the main enemy of chocolate, cheese and anything with a coating, and a pack in sun gets considerably warmer than the air around it. Packaging that keeps its shape protects contents and adds weight and bulk, so most people repack into bags and accept some damage.

Oil migrates, so anything oily should be double-bagged unless you want it distributed across your sleeping bag by the third day. The test that matters is not whether a food is nutritious but whether it will still be recognisable and appetising after six days of compression.

Cooking, or not

A stove buys hot food and drink and costs the weight of the stove, the fuel, the pot and the time spent using it twice a day. Cold soaking, where dried food is rehydrated in a sealed container over a few hours, removes all of that at a considerable cost in enjoyment.

Locally, hot food matters most in cold and wet conditions, where a warm meal and a hot drink do real work for morale and for rewarming. Fuel planning is the part most often got wrong, and it depends on altitude, temperature, wind and how much snow has to be melted.

Availability of fuel canisters varies by country and cannot be assumed, so anyone flying to a trip should confirm local supply before relying on it.

Variety is a practical requirement

Flavour fatigue is real, and a food that was pleasant on day one can become genuinely difficult to eat by day five if it is the only option. Texture is the dimension people forget, since a week of soft rehydrated food creates a craving for something crunchy that nothing else satisfies.

The detail that matters: small quantities of strong flavours weigh almost nothing and transform repetitive meals, which is why salt, spice, and stock are standard additions. Splitting food into daily bags removes the daily decision and prevents the common failure of eating the best items first. Something specifically enjoyable each day, rather than merely adequate, is a reasonable weight to carry on a long trip.

That varies by region, and it is worth checking locally.

Storage, animals and leaving nothing

Food attracts animals, and the appropriate precautions differ enormously between regions, from hanging bags to hard canisters to simply keeping food inside a tent. Local guidance is the only reliable source here, since the correct approach depends on which species are present and what they have learned.

Rodents are the more common problem in most places and will chew through a pack to reach food, which is why food is rarely left inside one unattended. All packaging comes out with you, including foil, wrappers and the fragments that end up in the bottom of a pack. Food waste is waste, and buried or scattered scraps change animal behaviour around campsites in ways that persist long after you leave.

The takeaway

Pack for the appetite you will have on day five, in a form that survives being sat on for four days first.

The route rewards patience more than equipment.