Quick Answer
For extreme cold, consider carrying 4-6 liters of water per person per day for hydration and melting snow for drinking water.
Water Needs in Extreme Cold
In extremely cold conditions, it’s essential to prioritize hydration to maintain body heat and prevent dehydration. A commonly used rule of thumb is to plan for 4-6 liters of water per person per day. This includes water for drinking, cooking, and melting snow or ice for additional water.
Calculating Snow Melting Needs
When water is scarce, it’s crucial to know how to melt snow efficiently. A good rule of thumb is to plan for 10-15 minutes of snow melting time per liter of water. If you have a portable stove or fire, you can use this as a guide to estimate your snow melting time. For example, if you need 2 liters of water, plan for 20-30 minutes of snow melting time.
Staying Hydrated in the Cold
In addition to carrying enough water, it’s also essential to stay hydrated through drinking and melting snow. Aim to drink at least 1-2 liters of water per person per day, with additional water coming from melting snow. To make snow melting more efficient, use a lightweight, portable stove or a DIY fire pit to melt snow quickly and safely.
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