Key takeaways
- Cold soaking rehydrates dried food in cold water instead of cooking — no stove, fuel, or cookware.
- It saves weight, time, and hassle, popular with ultralight hikers.
- Trade-offs: less variety and palatability, and no hot food or drinks.
- Works for foods that rehydrate cold: instant beans, couscous, oats, ramen, dehydrated meals.
What cold soaking is
Cold soaking is a no-cook backpacking method of preparing food by soaking dried ingredients in cold water (in a sealed container, often a screw-top jar) until they rehydrate — eliminating the need for a stove, fuel, and cookware. You eat the meal cold once it’s soaked.
Pros and cons
- Pros: no stove, fuel, or pot to carry; saves time, cooking chores, and fire/fuel concerns.
- Cons: cold meals (no hot food or drinks — a real downside in cold weather and for morale), limited variety and taste, soaking takes time, and not all foods work.
An ultralight hiker drops couscous and dehydrated veggies into a jar with cold water an hour before camp, lets it soak as they hike the final miles, and eats a ready-to-go cold dinner at camp — having left the stove, fuel, and pot at home to cut weight.
What foods work
Foods that rehydrate without heat: instant refried beans, instant mashed potatoes, couscous, instant rice, quick oats, ramen, and dehydrated meals. Hard grains and raw pasta don’t soak well cold. Cold soaking is a staple of ultralight backpacking, trimming base weight by skipping the stove system — at the cost of hot food.
The bottom line
Cold soaking ditches the stove entirely — rehydrating dried food in cold water to save the weight of stove, fuel, and cookware, a favorite ultralight tactic. The price is cold meals, limited variety, and soaking time, with no hot food or drinks. For gram-counters who'll trade comfort for a lighter pack, it works; for everyone else, a stove's hot meals are usually worth carrying.
Frequently asked questions
What is cold soaking?
Cold soaking is a no-cook way of preparing backpacking food: you soak dried ingredients in cold water in a sealed container (often a screw-top jar) and let them rehydrate over time, rather than cooking them. It lets you skip carrying a stove, fuel, and cookware entirely, eating your meals 'cold' once they've soaked.
What are the pros and cons of cold soaking?
Pros: it eliminates the weight of a stove, fuel, and pot, saves time and the chore of cooking and cleaning, and removes fire/fuel concerns. Cons: meals are cold (no hot food or drinks, which is a real downside in cold weather and for morale), the variety and taste are more limited, soaking takes time (often planned ahead), and not all foods rehydrate well cold. Many hikers find it functional but not enjoyable.
What foods work for cold soaking?
Foods that rehydrate without heat: instant refried beans, instant mashed potatoes, couscous, instant rice, quick oats, ramen, dehydrated vegetables and meals, and similar quick-rehydrating items. Hard grains and raw pasta don't work well cold. Hikers often start a soak an hour or more before eating (e.g., putting dinner to soak while hiking the last stretch) so it's ready by mealtime.
Sources
- Backcountry food & cooking — The Mountaineers
- Lightweight backpacking — American Hiking Society