Splintered ice cubes
I have a standard plastic ice cube tray-- there are 16 wells, and you pop the ice out by twisting tray in opposite directions. At my last residence, my ice cubes came out in whole cubes; I've just moved, though, and now my ice cubes are break into shards when I try to remove them. What would cause this? Minerality or something else in the water? The speed at which the water is freezing? The refrigerator does run cold, even after I've adjusted the temperature a few times. I'd love to hear your clever ideas on this.
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the mystery deepens.
as soon as i make ice in the new trays, i'll report back.
On the other hand, I've tried the hot vs. cold experiment and never achieved purity with tap water. I'd also go for the boiled, distilled hypothesis.
Fun stuff. I hope for some detailed reports.
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Get one new tray a rubbermaid and use that for the in the freezer.
I'm pretty sure you're old trays have some micro fractures, lime scale, etc.
In fact make another test group' Soak one of the problem trays with white vinegar for a couple hours--that will remove the lime micro scale. (but if the surface is scuffed up with micro fissures that won't help; so there).
hheheh...we're really getting down here aren't we?
SCIENCE!
To make it an objective test you'd have to remove some variables. "hot water" from the tap in most homes has lime and other little starter crystals.
So, if you want to bring down to hot vs cold. You'd have to use the same source...distilled water. One heated and one cold.
The reason hot water lines freeze in the winter is the same why ice cubes sticks with old ice cube trays----little mineral bits that make a 'seed' to form crystals.
It's not oxygen for that; ice needs a 'seeding point' to form a crystal. Supercold..pure water won't crystallize without that. (to a point).
On my windows in the winter..when the condensation starts and it's super cold outside and there's a film of water...If you touch it; that starts a chain reaction (disney fantasia like and the entire windows frosts over in seconds; it's magical).
Tho boiled distilled water does make clear ice for the same reason.
SKK, the splintered ice cubes are melting too fast and diluting my fizzy water-pomegranate juice concoctions. not the end of the world exactly, but i'm also perplexed by the drastic chage in the final product.
Yes and no for the hot water thing. Hot water has some air boiled out. So it's supposed to make clearer ice. There's a myth about Hot water freezing faster than cool water. But again that's both true and false. What happens with hot water to make it appear to freeze faster is that it evaporates in the freezer---the water cools down from the quick evaporation---and freezes 'faster' than the same original volume of cool water. But the ending volume is less...hot water looses it's volume via 'steam' in the freezer so what's left does freeze faster than a cool water tray of the same starting volume.because there's just less water left to freeze after it steams off.
(This could make a good science project for a kid with a digital scale and ice trays---measure the hot water volume and freeze and measure the resulting ice compared to cool water with the hypothesis of the cooling and evaporation of the water in the tray).
They're kinda like 'non stick' skillets; which no matter how much you baby them they'll develop little fissures and degrade over time.
Pick up one new tray and see if that works then replace the set.
The only other option is run water over the back of them before popping the cubes out.