Black Mold on Your Windows. A $3 Bottle Stops It. This Keeps It Gone
Long-form14:55People & Blogs
Published Oct 14, 2026, 1:11 AM · 2d ago
Ezra Kaine
98 subscribers · median 374 views
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Description
Built to Last — the old farm ways, all in one book: https://ezrakaine.com
How do you get rid of black mold on windows and stop it coming back? Every January a black
line grows along the bottom of the windows in this house, right where the glass meets the
wood. Last winter I treated two of them side by side. One got bleach. The other got a
three-dollar brown bottle from the drugstore. Then I left them alone and watched.
By week three, the bleach window was already coming back. By March, the other one had spots
too. The bottle kills it, but what keeps it from coming back isn't in any bottle. My
grandmother kept it hanging on a nail by every window she owned, and I walked right past it
for forty years.
WHAT YOU'LL LEARN
• Why bleach brings window mold back darker on wood
• The $3 drugstore fix, and the ten minutes almost everybody skips
• Vinegar vs hydrogen peroxide: which works, and when
• What to do when the black won't come out of the seal or the caulk
• The side-by-side test: what bleach and peroxide looked like by March
• Where window condensation actually comes from, and where else mold hides
• How to measure indoor humidity, and the number to aim for in winter
• Three common habits that make window mold worse
• The two-minute morning habit that keeps it from coming back
SAFETY: wear rubber gloves and a dust mask while you scrub. Never mix peroxide with vinegar or
bleach in the same bottle. Use one, rinse, then the other if you have to, because mixed they
make fumes you don't want in your lungs. Peroxide can lighten fabric, so keep it off curtains
and rugs. If mold has spread across a wall in a patch bigger than a card table, water is
getting in somewhere and you need someone to find it. Renters: if it comes back every winter
no matter what you do, keep it small and put it in writing to your landlord.
Tell me in the comments: did your windows run with water this morning? Yes or no, and what
state are you in? And which window's the worst? I'll bet it's the kitchen or a kid's bedroom.
Mold doesn't come from the window. It comes from the water nobody wiped up.
#BlackMold #WindowMold #MoldRemoval #Condensation #WinterTips #HomeMaintenance #HydrogenPeroxide #CleaningTips #OldHouse #Homesteading #OldWaysAreBest #Humidity
Tags
black mold on windowsmold on window sillshow to remove mold from windowswindow condensationcondensation on windows in winterhydrogen peroxide moldhydrogen peroxide vs bleach moldvinegar vs peroxide moldwhy bleach doesnt kill moldmold on window frameshow to stop window condensationindoor humidity winterhygrometermildew on windowsmold preventionmold in rentalwinter home tipsold wayshomesteadingEzra Kaine
Details
- Published
- Oct 14, 2026, 1:11 AM
- Length
- 14:55 (895 s)
- Format
- Long-form
- Category
- People & Blogs
- Audio language
- EN
- Quality
- HD
- Captions
- No
- Made for kids
- No
- Licensed content
- No
- Video ID
- 7BandeMumwc
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