How Amish Reduce HUMIDITY and Remove MOLD Forever

Added: 2026-05-07

[00:00:00]Mold removal is a $22 billion industry.

[00:00:03]Yet, a community without electricity solved this problem permanently using something you probably threw away last week. The answer isn't a product. It's an embarrassing oversight. Here's the thing about basements. We spend thousands sealing them up tight, then wonder why they smell like a gym locker from 1972.

[00:00:25]The Amish figured this out 200 years ago. And honestly, it's embarrassing how simple their solution is. When they dig root sellers, they leave deliberate gaps between the stones in the walls on purpose. While we're out here buying fancy vapor barriers and industrial sealants, they're basically letting their sellers breathe like a living thing. Why does this work? Underground soil stays around 55° year round. That cold earth acts like a free dehumidifier running 24/7.

[00:01:01]Moisture in the air hits those cool stone walls and condenses right there instead of floating around causing trouble. But here's where it gets clever. They slope their cellar floors slightly toward one corner. Just a gentle angle you'd barely notice. In that corner sits a simple gravel pit.

[00:01:22]All that condensed water, it rolls right down and collects there. No pumps, no electricity, no monthly bills. This passive drainage system can remove up to two gallons of moisture daily. That's 14 gall just disappearing into gravel. I've seen Amish sellers built in the 1800s still bone dry. Zero mold. Meanwhile, my neighbor's three-year-old basement already has that funky smell going on.

[00:01:53]The irony is painful. Modern building codes basically create perfect mold incubators. We trap moisture inside trying to be energyefficient. The Amish do the exact opposite. Now, letting air circulate is only half the battle. What they put on the walls might surprise you even more.

[00:02:15]All right, so the walls can breathe, but breathing walls mean nothing if mold just grows right on them. Anyway, here's where the Amish pull out their secret weapon. Lime whitewash. Sounds like something your great grandmother used, right? That's because she probably did.

[00:02:33]And there's a reason it never went away in Amish communities. Lime whitewash has a pH of 12. For context, mold throws in the towel at anything above 11. It literally cannot survive on a limecoated surface. The chemistry just doesn't allow it. I tried this in my own garage last summer, mixed up a batch, slapped it on the walls, and that musty smell vanished within days. $3 worth of hydrated lime. My neighbor spent 200 on mold remediation and his garage still smells like wet dog. But the real magic happens with moisture. See, latex paint acts like a plastic bag over your walls.

[00:03:19]Moisture gets trapped underneath, creating a mold buffet. Lime does the opposite. It actually pulls humidity out of the air when things get damp, then releases it back when conditions dry out. The walls regulate themselves. No dehumidifier humming in the corner. No electricity bill creeping up. Hospitals used this stuff for centuries before modern paint came along. They knew it killed bacteria and fungal spores on contact. We just forgot. One bucket covers an entire room. Reapply every few years. Done. Now moisture absorbing walls help tremendously. But what about getting that humid air out of the house in the first place? The Amish figured out something architects forgot. Windows aren't just for looking outside. They're air exchange machines. Walk into any Amish home and you'll notice it immediately. Windows sit directly across from each other. Not random placement, deliberate wind tunnels. When breeze enters one side, it has no choice but to exit the other. Physics does all the work. On a mildly windy day, this cross ventilation exchanges every bit of indoor air within 15 minutes. 15 minutes. Your bathroom exhaust fan couldn't dream of that efficiency. But here's where they get clever. See those smaller windows near the ceiling? Hot, humid air rises. Everyone knows this.

[00:04:55]Yet modern builders stick windows at eye level and call it a day. The Amish put escape routes exactly where that muggy air collects up high. And those little rectangular windows above doors. Transom windows. Your greatgrandparents had them everywhere. They let air flow through the house even when doors stay closed.

[00:05:18]Privacy with ventilation. Simple genius that we replaced with solid drywall.

[00:05:24]Pennsylvania summers hit 70% humidity regularly. miserable swampy conditions.

[00:05:30]Yet Amish homes feel noticeably drier than their airond conditioned neighbors.

[00:05:36]No compressor running, no electric bill climbing, just smart window placement working around the clock. My buddy sealed his house so tight for energy efficiency that he grew mold in three rooms within two years. The Amish would find that hilarious. We accidentally built perfect petry dishes and called it progress. Now cross ventilation handles summer beautifully. But what happens when winter arrives and those windows stay shut for months? Winter arrives.

[00:06:09]Windows slam shut and suddenly that beautiful cross ventilation disappears for 5 months straight. This is where the wood stove earns its keep. A wood stove burns between 400 and 600°.

[00:06:24]That kind of heat doesn't just warm your toes, it absolutely crushes indoor humidity. Within a few hours of lighting up, relative humidity drops from 70% to around 35%.

[00:06:38]Your lungs might complain, but mold spores hate it. Here's the part nobody talks about. That stove needs oxygen to burn. Where does it get oxygen? From inside your house, which means fresh air constantly flows through cracks and gaps to feed the fire. The Amish accidentally created a whole house ventilation system just by heating their homes. Electric heating sits there like a lazy cousin.

[00:07:08]Warms the air but moves nothing. Zero air flow. perfect conditions for moisture to settle on cold surfaces and start growing fuzzy green colonies. Now, sometimes that wood stove dries things out too much. Lips crack, skin flakes, static electricity makes your hair stand up like you stuck your finger in a socket. The Amish solution. Cast iron kettles sitting right on top of the stove. Steam rises gently. Humidity returns. They control moisture in both directions without a single electrical component. And the wood ash, they don't throw it away. That stuff goes straight into damp barn corners. Works exactly like commercial desicant products.

[00:07:55]Absorbs moisture. Costs nothing. Three cords of wood yearly keeps an Amish home bone dry through Pennsylvania's swampiest months. But what happens in spaces where fire isn't practical?

[00:08:10]That's where homemade science gets interesting. Closets, pantries, that weird corner behind the dresser where air goes to die. These spots never get airflow. Moisture just sits there throwing a party for mold spores. The Amish solution looks almost too simple to work. Homemade charcoal, not the briquettes you'd throw on a grill. This is the real stuff. They burn hardwood in covered metal containers until nothing remains except pure carbon. The fire can't get enough oxygen to turn the wood to ash, so it transforms into something remarkable instead. This charcoal absorbs up to 100 times its own weight in moisture. Let that sink in. A chunk the size of your fist pulls water out of the air like a tiny black sponge that never drips. The Amish stuff these chunks into cloth bags. Old socks work fine. Pillowcases, too. Then they hang them everywhere stagnant air collects.

[00:09:14]Under beds, inside wardrobes, behind that corner cabinet, nobody ever moves.

[00:09:21]Here's what surprised me. One bag works for about 2 months before it maxes out.

[00:09:26]But you don't throw it away. Just set it outside in direct sunlight for a day.

[00:09:32]The sun bakes out all that absorbed moisture and the charcoal resets completely. Same bag works for years.

[00:09:40]And it doesn't just grab moisture, it pulls odors, too. That musty basement smell gone. The charcoal traps those molecules alongside the water vapor.

[00:09:52]Those fancy dehumidifier bags at the hardware store. Check the ingredients.

[00:09:58]Same exact stuff, except they want $12 for what the Amish make from scrap wood.

[00:10:04]But sometimes mold already moved in before you caught it. What then? The mold's already there. You can see it.

[00:10:12]Maybe smell it, too. That black fuzzy patch laughing at you from the bathroom corner. Bleach seems obvious. Everyone reaches for it. But here's what nobody mentions. Bleach only kills mold on the surface. The roots underneath still alive, still growing. You basically just gave it a haircut. Vinegar works completely differently. White vinegar kills 82% of mold species on contact, not surface level. It actually penetrates into porous materials like wood and drywall, destroying the root system hiding underneath. The Amish figured this out generations before any laboratory confirmed it. They spray it on, walk away, never rinse. That last part matters. The vinegar residue keeps working for weeks, preventing new spores from taking hold. Rinsing would be like putting out a fire and then leaving matches everywhere. But what about the stubborn stuff? The mold that's been there so long it practically pays rent.

[00:11:19]Borax enters the conversation. One cup mixed into a gallon of hot water. Scrub it on again. No rinsing. The borax creates a surface mold simply cannot regrow on. Bonus, it also repels insects. Those little bugs that love damp conditions suddenly want nothing to do with your walls. I tried this in my own basement last summer. Commercial mold remover ran me $18. Worked okay.

[00:11:50]The vinegar and borax combo under five bucks. worked better and the smell disappeared faster, too. Now, these solutions fix existing problems. But what if you could build your house to reject moisture from day one? Now, here's something the Amish figured out that modern builders completely forgot.

[00:12:11]They raised their floors 18 to 24 in off the ground, sitting on stone or concrete peers with nothing but air underneath.

[00:12:21]Sounds simple, almost too simple. But this gap solves a problem responsible for 60% of all basement mold issues.

[00:12:30]Ground moisture. Water constantly evaporates from soil. In a typical house, that moisture rises straight up into your floor joists. It soaks into the wood, stays there, rots everything slowly from underneath like a secret you never wanted to discover. The Amish gap lets wind blow right through. Moisture never gets a chance to settle. Then there's the lattice skirting they install around the foundation. Keeps raccoons out. Lets breeze in. It's basically a screen door for your entire house foundation.

[00:13:07]My uncle had a crawl space that smelled like a wet dog's blanket, sealed up tight, insulated beautifully, rotting spectacularly.

[00:13:17]The moisture had nowhere to go, so it just stayed. Meanwhile, Amish farmhouses built in the 1800s still have their original floor joists. No rot, no replacement, no expensive contractor visits. Here's the kicker about modern construction. We seal crawl spaces and insulate them thinking we're being smart, energy efficient, forward thinking. What we're actually doing is gift wrapping our homes for moisture damage. Wood touching soil wicks water upward through capillary action. The Amish knew this before scientists had a name for it, so their floors stay dry.

[00:14:01]But what about the air inside those rooms? Salt. The same stuff sitting on your dinner table right now. Amish families fill shallow wooden boxes with rock salt and tuck them into damp corners, basement, closets, [snorts] that weird space under the stairs where spiders hold their annual conventions.

[00:14:23]Here's what happens. Salt naturally pulls water straight out of the air. No electricity, no moving parts, no instruction manual written by someone who clearly hates you. A 5B box absorbs nearly a quart of water over several weeks. You'll actually see it working.

[00:14:42]The salt crystals turn into brine, sitting there like a tiny swimming pool for your humidity problem. And when it's full, they dry it in the sun and use it again. Same salt, same box, works for years. Now, here's something most people miss. Salt doesn't just absorb moisture.

[00:15:03]It creates an environment where mold spores physically cannot germinate. Even if they land right next to the box, they just sit there, useless, like my brother-in-law at a family barbecue. The science is straightforward. High salt concentration disrupts the cellular structure mold needs to reproduce.

[00:15:26]Farmers have known this for centuries.

[00:15:28]It's why salt preserved meat doesn't grow fuzzy green stuff. commercial calcium chloride dehumidifiers at the hardware store. They work on this exact principle, except they charge you 20 times what bulk rock salt costs. Same chemistry, different marketing department, small spaces work best.

[00:15:50]Pantries, storage sheds, anywhere air tends to sit still and get lazy. But controlling humidity room by room only gets you so far. What about the food you're actually storing in those spaces?

[00:16:05]Vegetables sweat. Seriously, that carrot sitting in your pantry right now is slowly releasing moisture into the air.

[00:16:14]Amish families figured this out generations ago. Their solution? Sand.

[00:16:20]They fill wooden bins with clean, dry sand and bury root vegetables right inside. Carrots, beets, potatoes. The sand pulls moisture away from the vegetables before it can escape into the room and cause problems. Onions and garlic get a different treatment. Mesh bags, ceiling rafters up where air moves freely and humidity can't pull around them like some unwanted guest who won't leave. Here's where it gets interesting.

[00:16:51]A typical Amish pantry holds over 800 jars of preserved food. 800? That's more glass than a greenhouse. Yet these pantries stay bone dry. The secret? They check every single canning lid once a year. One failed seal. That's all it takes. One tiny gap releases enough moisture to grow mold on walls 3 ft away. Then there's the herb situation.

[00:17:20]Dried herbs hang in bundles near the wood stove. Not because it looks rustic and charming for photographs. The warmth keeps them crisp. Dampness causes spoilage. And spoilage releases more moisture. It's a chain reaction waiting to happen. And your refrigerator, every time it cycles on and off, condensation forms. Modern kitchens fight a humidity battle most people don't even realize they're losing. The Amish skip refrigeration for most storage. Cold sellers, root bins, hanging bags, everything breathes. But storing food correctly only matters if the rest of your house cooperates.

[00:18:04]What happens when spring humidity arrives and everything you did all winter gets tested. Spring arrives.

[00:18:11]Humidity follows like an uninvited relative who stays too long. The Amish don't wait for mold to show up. They attack first. Every spring, entire rooms get emptied, furniture out, rugs out, everything out. Then walls get scrubbed with vinegar solution top to bottom.

[00:18:31]This happens before humid weather even starts. Why before? Because by the time you see mold, it's already got roots growing deeper than your grandmother's tomato plants. Mattresses go outside for a full day of sunbathing. Ultraviolet light kills mold spores that accumulated during winter. Free disinfection. The sun charges nothing. And those curtains you haven't touched since last Easter.

[00:18:59]The Amish beat them outdoors with wooden paddles. Dust flies everywhere. Trapped moisture escapes. Mold loses its food supply. Here's something most people skip entirely. Wooden furniture needs protection, too. Amish families wipe everything down with linseed oil. This seals wood pores against moisture absorption for the entire coming year.

[00:19:25]One afternoon of work prevents 12 months of problems. The best part, this cleaning happens communitywide during the same weeks. Neighbors help neighbors finish faster. What takes one family 3 days gets done in one with extra hands.

[00:19:42]Makes sense, right? Modern families clean when they notice problems. Amish families clean to prevent problems from starting. That's the difference between chasing mold and never seeing it. My grandmother used to say cleaning was cheaper than complaining. She was right.

[00:20:00]These methods cost almost nothing.

[00:20:03]They've worked for centuries and they'll keep working long after expensive gadgets break down.