I started doing this a few years ago after watching a video from Big Clive where he mentioned it, and it has really made a difference. No more smelly shoes, socks or feet and no fungal growth.
Seems silly but living under the tropics and macerating in closed shoes all day does have these rather annoying side effects, and whatever shoes you wear, sweat and a warm environment are a breeding ground for bacteria.
Adding about half a teaspoon of powdered boric acid to each shoe at least a couple times a week makes a huge difference.
Best is in new shoes, they will smell like new even a couple of years later. I'm not even exaggerating when I say that at the end of a long day, socks only smell of fabric softener and feet smell of well, nothing.
Boric acid still makes nervous but it is completely safe?
It's not toxic otherwise. You need very high concentrations: lethal dose is 2.6g/kg. To put that in perspective, table salt is lethal at 3g/kg.
Wouldn't that lead to a powdery build up after a while? Do you need to eventually shake out the powder?
Best is to try it and make your own experience.
Boric acid is quite cheap.
That's like a human eating about 2g of the stuff every day, on par with your needed daily intake of salt.
That would be a lot of boric acid...
In our case were only concerned with external application and there doesn't seem to be any noted effect there.
I've had fungal infections in the past, between the toes mostly, but it's a thing of the past now. Nothing in the past 5 years.
Have a look at Big Clive's video on "Fixing your feet":
It not only does a better job of cleaning the clothes than Tide and the like (bonus: no perfume smell), it's much cheaper as well and has saved us hundreds of dollars in detergent costs over the last few years.
1 gallon of tide = $15, 5 gallons of home-made detergent = less than $2. The only downside is that powered washing soda is not carried by every grocery store these days. (And it means you need to store 5 gallons of detergent somewhere.)
We use this recipe but we don't bother to boil the bar soap: https://www.mrshappyhomemaker.com/homemade-liquid-laundry-de...
Most common mix is
- Dissolve 1 teaspoon of borax in 1/4 cup (2 oz) warm water.
- in a separate bowl, Mix 1/2 cup (4 oz) kids glue with 1/4 cup of warm water.
- once everything is mixed properly, you can also add food color, glitters and whatnot. I stick to white so I can see the crap I capture and when its saturated properly.
- Mix the content of the 2 together a lot
The resulting slime can be used later when sealed properly.
Don’t skip the water-glue mix, it helps with the end result.
You can capture a LOT of dust without creating airborn particles, or have something fun for the kids to play with.
You do now need to use all the water from the mix if there’s leftover after a long mix.
Anecdotally, burst electrolytic capacitors in electronics make very effective ant traps. I don't know which component attracts ants (is it the glycol?), but the boric acid component is an effective insecticide (as OP discusses). Commercial ant products are based on borax as well.
Anecdotally, you *don't* want your electronics to dual-class as ant traps.
> Traditionally borax was used as a flux for brazing, but there are now many different fluxes available, often using active chemicals such as fluorides as well as wetting agents. Many of these chemicals are toxic and due care should be taken during their use.
Since people are already exposed to boric acid naturally through their diets and water, Health Canada advised that exposure from other sources should be reduced as much as possible, especially for children and pregnant women. The concern is not with any one product, but rather multiple exposures from a variety of sources.
"Although it does not appear to be carcinogenic, studies in dogs have reported testicular atrophy after exposure to 32 mg/kg bw/day for 90 days. This level is far lower than the LD50."
The base toxic dosage (on the order of multiple grams per kilogram bodyweight) is the reason it's typically labeled as very safe.
Kind of different than just boric acid itself?
Spray it on lumber, and it absorbs into the wood, killing termites, powder post beetles, carpenter ants, mold, and algae.
For the lifetime of the lumber, no reapplication necessary.
Cannot recommend it highly enough for exposed crawlspaces / basements in humid climates.
I think you are thinking of silicon dioxide which does get into the chitin of insects: http://npic.orst.edu/factsheets/degen.html
I lived in downtown Baltimore, in a row house.
I had roaches. Not the big, giant, kind, they get in the tropics. These were smallish, basic, tough-as-nails-will-still-be-around-after-the-apocalypse roaches.
When I put out borax, they immediately took out little straws, and started snorting it.
The same places supply much of the soda ash and bicarbonate of soda for the US. Plus sodium sulfate/glauber's salt.
Works way better than baking soda but does leave a grit behind, so rinse well.
But it is referenced here
I will go look over metafilter archives, since I imagine that’s where I read this originally.