We had a slight argument in college once concerning who was supposed
to clean a pot that we made mashed potatoes in. So no one did clean
it. It sat for a few months. Finally someone banged it in the sink,
whatever residue that was in it fell out and the pot had cleaned
itself. Given enough space and time, nature will take care of it.
Usually we don't have sufficient dishes for that approach.
Brings to mind an old family tale.
My grandfather was a diamond prospector (digger)in South Africa. The
diamond that he used to get engaged to his wife was one that he found
himself. My wife now wears it as a second ring.
Anyway, the life of diggers were kind of rough, and they needed a lot
of water for washing the rough ore to find diamonds, so water was
always in short supply.
After my grandmother died, he briefly went back to prospecting for
diamonds again (some say it was just a guise for smuggling uncut
diamonds, which was illegal in South Africa, but nowhere else in the
world). While on site, I once went to visit him to see how it was done
He invited us for a meal and told the story about another digger who
always invited people over for meals and assured them that his
flatware was "as clean as soap and water could get it." My
grandfather said he stopped going over for dinner after the first meal
when his host gathered the used flatware, took them outside the
trailer, laid them on the ground and called out" "Here Soap, here
Almost certainly the water in which you are washing dishes by hand is
not as hot as the water in which modern dishwashers wash dishes. Even if
it's 120 degrees F as it comes out of the faucet, it won't stay that way
for long. And your hands probably wouldn't stand it for long.
Almost certainly the dishwashing detergent you use to wash dishes by
hand is not as potent as the detergent designed for dishwashers. If it's
easy on your hands, it's not as aggressive at removing grease, etc.
Certainly (no "almost" this time) you are not rinsing your dishes in
180-degree water, let alone maintaining them at that temperature for
several minutes to sanitize them, as our dishwasher does.
I've never seen a dishwasher that didn't allow "heated dry" to be turned
The only time I've seen crud left on items coming out of our
Whirlpool-built Kenmore dishwasher is when it wasn't loaded properly.
Dept. of Health here test the dish washing sink hot water at our
local school and insist that it be 160 deg F or higher.
So that hot water is fed from a separate hot water heater adjacent to
to the kitchen area. Whereas the hand washing hot water for the
students washrooms is at much lower temperature from another source.
Best way to use dishwasher is to add dishes until it is full and then
run it. I have several cutting board which are used only once
(especially if cutting certain meats such as raw chicken) at a time
and then placed in dishwasher. As a single pensioner mine is run about
two or three times a week and will contain many tea mugs each time!
Have you taken the chopper assembly apart and checked it? Had very similar
issue once. Found chopper all messed up. Broken plastic, washer and clip
came apart as well as some broken glass bits. Replaced assembly.
To this, I'll add the fact that there are some vegetable parts which can
only be chewed up by microorganisms or plastic explosives, and some people
do a lousy job of scraping plates because they think food disposals &
dishwashers can handle anything.
Many years ago, I discovered you can make the strongest rope in the universe
by putting kale stems into the sink disposal.
Some detergents leave behind what looks like grit. That happens when the
water is not circulating properly, the water is not hot enough, or the water
is hard and not rinsing properly.
It is also possible that you are suddenly getting grit from your water
source or the hot water heater is about to crap out and is sending mineral
deposits. Take some hot water in a clean glass container and let it settle
out overnight to see if there is any solids.
A member of the family was complaining about this same problem. We went through
everything: changing detergent, checking water pressure, checking the water
softener. After months of complaining, said same family member admitted she had
been loading the silverware basket with tall utensils that were keeping the arm
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