Survival Blog

WHY WINTER DEHYDRATION IS A HIDDEN THREAT

Written by Jason Marsteiner | 11/27/24 1:26 PM

Staying Hydrated in the Winter Wilderness: Water Tips for Everyday Adventurers

 

Why Winter Dehydration Is a Hidden Threat

Winter in the Colorado Rockies is breathtakingly beautiful, until dehydration sneaks up on you like an avalanche. Whether you’re snowboarding down Breckenridge, snowshoeing through Rocky Mountain National Park, or taking Instagram-worthy shots while hiking icy trails, staying hydrated is key to your adventure’s success.

In this fifth part of our nine-part Winter Survival series, we’ll focus on sourcing and purifying water in snowy conditions. This isn’t just a skill for grizzled bushcrafters; it’s practical knowledge every mountain visitor should have, especially if you’re the confident type who thinks your CamelBak can last for three days or if you’re a newbie wondering if you can eat icicles for hydration (spoiler: you shouldn’t).

 

Why Staying Hydrated Matters More Than You Think

First things first: dehydration doesn’t take a winter break. In fact, it can hit harder during winter activities because cold air often tricks your body into thinking you’re less thirsty. Add in the physical effort of skiing, hiking, or just tromping through deep snow, and you’re sweating more than you realize.

Symptoms of Dehydration in Winter

  • Dry mouth or throat
  • Fatigue or lethargy
  • Dizziness or lightheadedness
  • Dark yellow urine (if you’re peeing less often, take note)
  • Feeling irritable or confused

The Right Way to Source Water in Winter

When you're out in the Colorado Rockies, water sources aren’t always obvious. Rivers and streams might be frozen, and snow—while abundant—requires careful handling to make it drinkable.

Melting Snow and Ice

  • Snow First, Heat Second: Always melt snow before consuming it. Eating snow directly can lower your core temperature and burn unnecessary calories as your body works to warm it up.
  • Choose Clean Snow: Go for fresh, white snow. Avoid anything that’s discolored (yellow snow jokes aside, this can be serious) or has debris, as it could be contaminated.
  • Melting Tips: Use a camp stove or portable burner. Fill your pot halfway with snow, melt it down, and then add more snow. This keeps you from scorching your cookware and helps the process go faster.
  • Ice Is Better Than Snow: If you have access to clean ice, use it. It’s denser and produces more water per volume, saving you time and fuel.

 

Purifying Your Water: Snow Doesn’t Equal Clean

Even in pristine-looking wilderness, snow and ice can harbor bacteria, viruses, or pollutants. Think of it this way: just because it’s frozen doesn’t mean it’s pure.

Portable Water Filters

  • Compact and easy to carry, water filters are a favorite among outdoor enthusiasts. Brands like Sawyer or Katadyn are reliable for removing most bacteria and protozoa.
  • Remember that filters can freeze in cold weather. After use, store your filter close to your body or in an insulated container to keep it from freezing and cracking.

Purification Tablets

  • Tablets like Aquatabs or iodine-based treatments are lightweight and effective. Just remember they take time to work—usually 30 minutes to 4 hours depending on the product.
  • Pro tip: If you’re melting snow and it tastes a little… earthy, add a small pinch of drink mix powder or a splash of electrolyte mix to improve the taste. It’ll not only make your water more enjoyable but can also help replenish some of the minerals you’re sweating out during your adventure

Boiling

  • Boiling is one of the simplest and most reliable ways to purify water. Bring it to a rolling boil for at least one minute at lower altitudes. If you’re above 10,000 feet, increase that time to at least three minutes.
  • Be mindful of fuel: boiling can burn through your reserves quickly, especially if you’re relying on a portable stove. If you’re low on fuel, perhaps its time to tap into your fire starting skills.

Quick Water Purification Comparison Chart

 

Tips for Avoiding Dehydration in the Cold

It’s easy to underestimate your water needs in cold weather, but staying proactive can make all the difference.

Plan Ahead

  • Bring more water than you think you’ll need. Winter conditions often require more hydration due to the added physical effort and dry air.
  • Invest in insulated water bottles to prevent freezing. Look for bottles with wide mouths; they’re easier to use if the water does partially freeze.

Drink Regularly

  • Set reminders to take a drink every 20-30 minutes during activity, even if you’re not thirsty.
  • Add flavoring to your water to make it more appealing. A little electrolyte powder or a splash of lemon juice can go a long way.

Avoid Caffeine and Alcohol

  • As tempting as that coffee or shot of bourbon might be, caffeine and alcohol can dehydrate you. Stick to water or herbal teas until you’re safely back in civilization.

 

Pro Tip: Make Pine Needle Tea for a Warm, Vitamin-Packed Beverage

Forgot your tea bags but still craving a hot drink with a bit of flavor? Look no further than the trees! If you’re in a pine forest, like the ones we’re surrounded by in Colorado, you’ve got the perfect ingredient for a refreshing and nutrient-rich tea.

Pine needles not only add flavor to your water, but they’re also packed with vitamin C. However, avoid Ponderosa Pine. These are the pine trees with needles that are 3-5 inches long. While not poisonous, they’ve been linked to causing premature births in cattle, so it’s better to steer clear just to be safe. Stick to other pine varieties for your tea-making. Blue Spruce is safe to use too!

Here’s how to turn those pine needles into a warm, comforting beverage:

  1. Collect Fresh Needles: Grab a handful of pine needles, ideally from the youngest tips of the branches (those closest to the end). They’re milder in flavor compared to the older ones, which can be overpowering.
  2. Prep the Needles: Remove the needles from the stem and either chop them up or bruise them a bit. This helps release their oils and nutrients into the water.
  3. Steep: Add the prepared needles to a cup of hot water. Let them steep until most of the needles sink to the bottom, this usually takes about 5-10 minutes.
  4. Strain (Optional): You can strain the tea if you’d like, but pine needles are easy to spit out as you sip, so it’s not necessary.

And there you have it, warm, flavorful pine needle tea that not only soothes but also gives you a little vitamin boost. Perfect for a chilly day in the wild!

 

How Snow Can Save Your Water Bottle from Becoming an Ice Block Overnight

Snow, despite being cold itself, can actually help keep your water from freezing all the way through. Sounds backwards, right? Let’s dig in, pun intended.

The Science of Snow as an Insulator

Believe it or not, snow is more than just nature’s glitter. It’s actually a fantastic insulator. Snow traps pockets of air between its flakes, making it a poor conductor of heat (or in this case, cold). This means that while the outside air might feel like something out of an Arctic nightmare, the temperature within a snowbank is relatively stable and much warmer than the ambient air.

When you bury your water bottle in snow, you’re essentially tucking it into nature’s version of a cozy sleeping bag. This insulating effect helps keep the water bottle's temperature higher than the frigid air above ground, reducing the likelihood of it freezing solid overnight.

 

 

How to Build a "Water Generator" to Melt Snow into Water

When you're out in the wilderness during winter, finding drinkable water can be a real challenge. Sure, snow is everywhere, but eating it directly will lower your body temperature, a big no-no when you're already trying to stay warm. Enter the "Water Generator," a simple setup that lets you turn snow into liquid gold (a.k.a. water) with minimal effort. Here's how to build one and keep the hydration flowing:

Step 1: Build a Campfire

Start with a solid campfire—hot, steady, and capable of producing enough heat to melt snow without direct contact. The fire is the engine of this operation, so make sure it’s strong and well-fed.

Step 2: Set Up the Tripod

Next, construct a sturdy tripod using three long sticks or poles. Tie them together securely at the top, then spread the legs evenly to form a stable frame. This tripod will hold your "snow bowl" in place.

Step 3: Create a Hanging Snow Bowl

Take a scarf, t-shirt, or any piece of durable fabric you have on hand and tie the corners to the legs of the tripod. The result should look like a hanging bowl (or hammock-like sling) that can hold a decent amount of snow. Make sure it's securely fastened, as the fabric will get heavier when loaded with snow.

Step 4: Position the Tripod Near the Fire

Place the tripod near the campfire, close enough for the heat to reach the snow-filled fabric but not so close that it risks catching fire or scorching. This positioning is key—too close, and you'll ruin your setup; too far, and the snow won’t melt efficiently.

Step 5: Place a Container Beneath the Fabric

Now, set a pot, canteen, or any container you have directly underneath the scarf to catch the melted snow as it drips through. If you’re resourceful enough to build a water generator, you probably have something handy for collecting water.

Step 6: Load with Snow and Refill Regularly

Pile snow into the fabric bowl, and let the heat from the fire do its magic. As the snow melts, water will drip through the fabric and into your container below. Keep adding fresh snow to the bowl to ensure a constant supply of water.

Why This Method Works

The Water Generator is brilliant in its simplicity. The fire provides consistent heat to melt the snow, the fabric acts as a filter, and gravity does the rest by directing the water into your container. It’s efficient, easy to set up, and doesn’t require fancy gear. Plus, it keeps you hydrated without risking hypothermia by eating snow directly.

Whether you're camping, hiking, or in a survival situation, this technique is a reliable way to stay hydrated in winter’s harsh embrace. Just think of it as your backcountry hydration station, powered by fire and ingenuity.

 

How to Use Snow to Keep Your Water from Freezing

You're deep in the backcountry, temperatures are plummeting, and the icy grip of winter threatens to turn your precious water supply into a solid block of frustration. Staying hydrated is hard enough without having to chip away at frozen water bottles. But what if I told you that snow, yes, the very thing responsible for the bitter cold, could actually help prevent your water from freezing? It’s a simple yet genius trick, and it might just save you from an icy morning struggle. Here's how to use snow to keep your water in liquid form when the mercury drops.

  1. Find a Snowbank or Make One
    Look for a deep, undisturbed snowbank or pile one up yourself if Mother Nature hasn’t provided. The deeper, the better. Aim for at least a foot or more of snow above and around the bottle.
  2. Bury the Bottle Upside Down
    Here’s where physics and practicality team up: water tends to freeze at the surface first. By burying your bottle upside down, any ice that does form will be at what is now the "bottom" of the bottle. When you flip it back upright in the morning, the water will still be accessible at the top. It’s a small but brilliant hack that can make all the difference when you’re thirsty at sunrise.
  3. Use a Wide-Mouth, 40oz Bottle
    Not all water bottles are created equal. Wide-mouth bottles are your best friend in cold weather. Why? They’re easier to clean, less likely to crack from expanding ice, an much easier to chip apart the ice if things go south. A 40oz bottle strikes a perfect balance between capacity and manageability. Plus, more water means it takes longer to freeze compared to smaller volumes.
  4. Keep the Lid Secure
    Make sure the lid is tightly sealed to prevent leaks. Make sure its snug, just don’t overtighten it, as frozen threads can make reopening it a wrestling match you’re not equipped for without a wrench.
  5. Don’t Forget It!: Yes, this sounds obvious, but you’d be surprised how easy it is to forget where you buried your bottle. Mark the spot with a stick! Make it obvious! Don’t just rely on a mental note of a nearby landmark. You don’t want to spend your morning digging through snow like a frantic squirrel.

Pro Tip: If you can boil water, fill a non-insulated water bottle with the hot water. This won’t work with insulated bottles since they’re designed to keep heat in. Once the water is in, seal the lid tightly, then wrap the bottle in a sock, t-shirt, scarf, or whatever you have on hand.

Now, here’s the good part, take it with you while you rest or cuddle it in your sleeping bag. It’ll act like a mini-radiator, helping to warm your body while you relax. If you’re using it overnight, you’ll wake up to water that’s still warm or at least body temperature. That means you can sip warm water to start your day or get straight to brewing hot chocolate, coffee, or tea without waiting forever to heat up ice-cold water. Efficient and cozy, what’s not to love?

Why This Works (and Why It Matters)

The key here is the temperature difference. If you leave your water bottle exposed to the open air, it’s at the mercy of the biting cold. Depending on the conditions, it could freeze solid in just a few hours. By insulating it with snow, you’re creating a barrier that slows the freezing process. It’s not magic, it’s thermodynamics.

This trick isn’t just for keeping your water bottles in good shape—it can also inspire solutions for staying warm yourself. Need a place to sleep? You can build a snow cave! If you haven’t checked it out yet, be sure to read Part 3 in this series: Building a Winter Shelter for a step-by-step guide.

 

Why You Should Never Ration Water in a Survival Situation

It’s a common myth in survival situations that you should ration your water supply, sipping sparingly to make it last longer. The logic might seem sound—stretch out your resources, right? But in reality, rationing water does more harm than good. Here’s why you should drink as much water as your body needs when you need it, and how to do it wisely.

Hydration Isn’t Optional

Your body depends on water to function, especially in stressful situations. Dehydration affects everything—your energy levels, decision-making, physical endurance, and even your ability to regulate body temperature. If you’re rationing water and drinking too little, you’re essentially forcing your body into shutdown mode. Dehydration leads to headaches, confusion, dizziness, and in extreme cases, death.

Think of it this way: water is fuel, and your body is the engine. Starving your engine of fuel when it’s already running on empty doesn’t make sense—it just accelerates the breakdown.

Drink What You Have

When you have water, drink it. Don’t hoard it in the hopes that it’ll last you longer. Dehydration doesn’t care how much water you have; it only cares how much water you drink. If your body isn’t hydrated enough to keep your vital systems running, you won’t have the energy or clarity to find more water.

Instead of rationing, focus on prioritizing finding or purifying more water as soon as possible. Your body’s performance will be far better if it’s hydrated enough to work efficiently, even if that means drinking all your current supply.

The Right Way to Hydrate

That said, chugging your entire water supply in one go isn’t the solution either. Your body can only absorb about 1 cup of water every 15 minutes, so drinking more than that at once won’t do you any favors, it’ll just end up as wasted trips to the bathroom or even worsen dehydration if you’re sweating excessively.

The goal is to drink consistently and in amounts your body can use. Pay attention to your thirst cues, and don’t hold back when you’re thirsty. A steady intake is far more effective than rationing or binge-drinking your water.

What Happens When You Drink Too Little or Too Much

  • Too Little: Your body begins to prioritize vital functions, shutting down less critical processes like digestion and cognitive clarity. Over time, your physical and mental performance will tank, and you’ll feel sluggish, dizzy, or disoriented.
  • Too Much at Once: Chugging large amounts of water doesn’t hydrate you faster—it overwhelms your body’s absorption rate, meaning most of it passes right through you. This is wasteful and leaves you in the same boat as if you hadn’t hydrated at all.

Focus on Finding Water, Not Stretching It

The takeaway? Don’t ration water. Drink what you need when you need it, and make finding or purifying more water a top priority. Whether it’s melting snow, collecting rainwater, or filtering from a natural source, actively seeking water is far more effective for survival than trying to nurse a half-empty bottle for days.

Hydration is survival. Give your body what it needs, and it’ll repay you with the strength and clarity to keep going.

 

Let’s Talk About Pee: The Survival Edition

Since we’re already on the topic of water, it’s time to address something people don’t often talk about in survival situations: pee. Yup, we’re going there.

Drinking Your Own Pee: Just Don’t

First things first, should you drink your own urine if water is scarce? The answer is a resounding no. Despite what you might have seen on certain shock-and-awe survival shows (looking at you, Bear Grylls), drinking urine is a terrible idea. Here’s why:

  • Urine is waste: Your body is getting rid of it for a reason. It contains salts, toxins, and waste products that your body has already worked hard to flush out. Reintroducing it just makes your kidneys and other organs work overtime, accelerating dehydration.
  • It doesn’t hydrate you: The salt and impurities in urine can actually make you more dehydrated, not less.
  • It’s not sterile: Contrary to popular belief, urine isn’t sterile, especially once it leaves your body. Drinking it introduces bacteria and pathogens that could make a bad situation worse.

In short, leave the urine-drinking antics to reality TV. It’s not real survival, it’s a ratings gimmick.

Why You Shouldn’t Hold It

Now that we’ve ruled out drinking your pee, let’s talk about what to do when nature calls. If you have to go, don’t hold it in, especially when you’re trying to sleep.

Here’s the deal: your body has to keep your bladder warm, which means expending precious energy to maintain the temperature of the urine inside you. This process saps heat from the rest of your body, leaving you colder and less comfortable.

Yes, it’s annoying to drag yourself out of your warm sleeping bag and brave the elements, but trust me, it’s worth it. Once you empty your bladder, your body has less work to do, allowing you to conserve heat and sleep more comfortably.

Monitor Urine Color and Frequency: Regularly check the color and volume of your urine. Dark yellow or infrequent urination can indicate dehydration. Aim for light-colored urine as a sign of adequate hydration.

The Bottom Line

Pee may not be the most glamorous survival topic, but it’s an important one.

  • Don’t drink it. Ever.
  • Don’t hold it in, even if it means a midnight trek into the cold.

Taking care of these basic needs keeps your body functioning efficiently; helping you stay warmer, healthier, and better equipped to handle the challenges of the wild. So the next time nature calls, answer it! It’s just good survival.

 

Why You Should Avoid Alcohol in Cold Weather

Reaching for a flask in freezing temperatures might seem like a good idea, it’s warming, right? Not exactly. Alcohol creates the illusion of warmth, but in reality, it’s doing more harm than good when it comes to surviving the cold.

When you drink alcohol, it dilates the blood vessels near the surface of your skin, sending warm blood outward. This gives you that fleeting, cozy sensation of heat. However, this process actually robs your core of critical warmth, making you lose heat faster and putting you at risk for hypothermia. Essentially, alcohol tricks your body into thinking it’s warmer than it really is, a dangerous illusion in survival situations.

On top of that, alcohol is a diuretic, meaning it increases urine production and speeds up dehydration. Dehydration can already sneak up on you in cold weather, so adding alcohol into the mix only makes it worse.

A Better Alternative

Instead of alcohol, stick to warm, non-caffeinated drinks like herbal teas or plain water heated over a fire or stove. A hot beverage not only helps hydrate you but also genuinely warms your core, boosting morale and keeping you focused. Save the celebratory drink for when you're safely out of the cold, your body will thank you.

In survival situations, your best ally is clear thinking and careful planning, not false warmth from a shot of whiskey. Stay sharp, stay hydrated, and save the spirits for toasts, not tactics.

Don’t Let Ego or Inexperience Get in the Way

For the seasoned adventurers out there: remember that overconfidence can lead to trouble. Just because you’ve tackled summer hikes or backpacked in the desert doesn’t mean winter hydration is a walk in the park. Arrogance has a funny way of turning small mistakes into big problems.

And for the newcomers: ignorance isn’t bliss when it comes to hydration. You don’t have to be a wilderness expert, but learning these basics can keep your winter adventure fun and safe.

 

Final Thoughts: Stay Hydrated, Stay Ready: Winter Adventure Essentials

Winter survival in the Rockies is as much about preparation as it is about enjoying the adventure. Staying hydrated might not seem as glamorous as carving down a powdery slope or snapping photos of snow-covered peaks, but it’s the backbone of any successful winter outing. From melting snow to brewing pine needle tea, and even monitoring your body's hydration signals, these small efforts can make a big difference.

So, as you pack your gear and plan your route, don’t let hydration fall to the bottom of your checklist. Make it part of your routine, and treat it with the same care as your layers and safety gear. Hydration isn’t just about surviving, it’s about staying strong and energized in the cold, so you can fully embrace everything the Colorado wilderness has to offer.

Stay warm, stay hydrated, and as always, adventure wisely. Got a winter hydration hack you swear by? Share it in the comments we’re all learning from the wild and each other!