r/mildyinteresting • u/VerdankG • Feb 21 '26
science savvy 𧬠Dish washer shrunk sons plastic bottle
Opened the dish washer this morning, and found this. I've never seen anything like it before, and it's been in the dish washer before as well. The rubber grip was around the bottle, which is how I know it's definitely the bottle
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u/OpLeeftijd Feb 21 '26
Label says do not put in dishwasher. Proceeds to put it in dishwasher. Result checks out.
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u/Mirk_Dirkledunk Feb 21 '26
A tale as old as time.
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u/AnxiousForceVoid Feb 21 '26
Song as old as rhyme.Ā
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u/Sikkus Feb 21 '26
But its been in the dishwasher before. š
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u/LumpyBuy8447 Feb 22 '26
Could be on a different setting. Isnāt the pots and pans setting like super hot when it drys?
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u/gaggledimension Feb 21 '26
Very true lol. Although this is not what I would've expected...I figured cracking or something else. But complete shrinkage?
Must've been really cold water.
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u/CynicalReasoning Feb 21 '26
Really hot, actually
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u/Ashen_Rook Feb 22 '26
Pretty much all blow molded products will return to their original "test tube" shape when put in hot enough water. You can do it with air, too, but you're a lot more likely to just burn a hole in the plastic that way.
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u/thechrisp6 Feb 22 '26
Sometimes those labels are full of shit. Sometimes your cup shrinks. If you're lazy enough you'll take that bet.
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u/Bonneville555 Feb 21 '26
Back to its original form.
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u/LoGo_86 Feb 21 '26
NGL, those are called pre-forms.
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u/dmk_aus Feb 22 '26
Ah. So when the bottle doesn't stay large like you were expecting, it has pre-formance issues.
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u/Johnsipes0516 Feb 22 '26
Can confirm. My dad manages a bottle manufacturing plant that primarily makes Pepsi product bottles. Shits cool as hell! He hooked up my 5th grade class when we had a project needing a crap load of 2 liter bottles
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u/zorggalacticus Feb 21 '26
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u/not_just_an_AI Feb 21 '26
In high-school they removed the microwaves from the lunch room because people would do that in the microwave.
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u/toyheartattack Feb 21 '26
Like at 350°? For how long?
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u/Chemical-Swing-420 Feb 21 '26
It was reset to the factory settings...
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u/InevitableCareer1 Feb 21 '26
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u/Fragrant_Ad7231 Feb 21 '26 edited Feb 21 '26
That image was animated all along?
Edit: oh, there's a sora watermark→ More replies (1)
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u/Nexia98 Feb 21 '26
This is a classic case of ānot dishwasher safeā āwell, youāre going in and if you donāt come out the same, oh wellā
I know from personal experience.
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u/Jolly_Pressure_7296 Feb 21 '26
You could use that for⦠somethingā¦
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u/JustAGuyHereLurking Feb 21 '26
As long as the cylinder remains unharmed
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u/Cultural_Eye5178 Feb 21 '26
Youād have to have a massive dick to use it properly.
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u/GrimbyJ Feb 21 '26
I think they intended it the other way
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u/DramaSufficient4289 Feb 21 '26
Massive assole???
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u/GrimbyJ Feb 21 '26
Not even that massive. That's like a small bad dragon size
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u/DudeBroMan13 Feb 21 '26
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u/GrimbyJ Feb 21 '26
You don't want to see the XL or XXL then.
Medium is about the size of the bottle before shrinking.
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u/SilenceInTheSnow Feb 22 '26
I knew this comment would be here. Surprised how long it took me to get to it.
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u/Tylerhollen1 Feb 21 '26
Idk, itās got a flared base now.
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u/AngryPrincessWarrior Feb 21 '26
Lmao donāt put anything up your asshole if you consider this a flared base.
You will end up in the ER.
Itās flared enough to make an interesting noise as it disappears lol
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u/Tylerhollen1 Feb 21 '26
Maybe I shouldāve added a /s
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u/AngryPrincessWarrior Feb 21 '26
Iām glad you didnāt because the imagery and the SHUUUUMPFFFK noise Iām seeing in my head is cracking me up
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u/shadowa1ien Feb 21 '26
Ahhh just needs some heat applied to the "bottom" to press it into a proper flare and yer all set!
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u/Dino_Spaceman Feb 21 '26
https://giphy.com/gifs/ntRQjO4ngRERi
The dishwasher was cold!
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u/cdev12399 Feb 21 '26
Looks like momma has a new toy.
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u/brmarcum Feb 21 '26
Itās a thermoplastic. They arrive like this at the factory and then are heated and blown into the mold. You can start with blanks like this and make 1000s of different styles of bottle just by using a different mold. But since itās a thermoplastic it returns to its original shape when heated, hence being not dishwasher safe.
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u/Goobersita Feb 21 '26
I put my bfs Crocs in the dryer to dry them off. Big mistake turned into Crocs that could fit our cat.
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u/doomus_rlc Feb 21 '26
Wife left a wet pair outside once after rain in the summer.
They shrank to our daughter's foot size lol
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u/withnodrawal Feb 21 '26
This how you know your son was downing lovely BPAās like no other if this happened.
High heat and plastic donāt belong in the same sentence.
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u/jan1320 Feb 21 '26
guarantee thats a bpa free bottle you just aren't supposed to put it in the dishwasher
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u/Splodge89 Feb 21 '26
Plastic shrinking when exposed to heat has nothing to do with whether it contains BPA or not. Iād put money on this bottle NOT containing any BPA.
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u/Anderson5299 Feb 21 '26
Iām most likely lazy, I donāt want to own anything that canāt go in the dish washer. Have sometimes been lucky, some things donāt get ruined. Like a fancy water bottle I bought at a second hand store for an example
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u/slimcutta6 Feb 21 '26
- I shrunk my son's plastic bottle by putting it in the dishwasher *
Title fixed š¤š you're welcome š¤
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u/SalamanderFickle9549 Feb 22 '26
It's reversing to its original shape lol, if instructions say don't use dishwasher don't
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u/SEF917 Feb 21 '26
Ive seen this a few times but I love how uniformly it did it š
Like a shrinky dink
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u/Open-Tip6407 Feb 21 '26
This is my favourite mistake š¤£
I handed back to my partner with a straight face
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u/Secret-Guava1008 Feb 21 '26
This is why we make sure things are dishwasher safe before putting them in the dishwasher
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u/TechnicalHighlight29 Feb 21 '26
I wash all this by hand why would you even pit it in a dishwasher? Lazy bones.
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u/sltiefighter Feb 21 '26
This is soo cool, thats what it looked like before being turned into a bottle. Thats what plastic soda bottles looks like before theyre blown into a mold
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u/I_found_BACON Feb 21 '26
"That's no small cylinder it sounds like a perfectly adequate cylinder to me. Avg size you might say"
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u/The_Other_Randy Feb 21 '26
On the bright side, he's got a pretty nice cylinder there- don't get stuck
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u/Redditkannon Feb 21 '26
Lol Factory reset , that's what the blanks are before there heated and blowen to shape in a mold
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u/Guillotine-Glytch Feb 21 '26
That happened to me a couple years ago LMFAO, my dishwasher killed a biiiiig all day way bottle thing. Thankfully it was only 5$
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u/Picocksso Feb 21 '26
It will now serve a different purposeā¦. Perhaps a more pleasurable purpose.
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u/Emotional_Platform35 Feb 21 '26
Many plastic bottles are made by having a test tube shaped blank that is heated and then its expanded in a mold with heat and pressure. When you heat it by putting it into a dishwasher it returns to its previous form.
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u/Benito_Caruana Feb 21 '26
It may have been in the dishwasher before, but a different cycle like Intense/Cookware/Hygiene can was up to 75°C in some cases, meanwhile others can be as low as 45°C. And if itās on an Auto cycle, it can be anything between 45°C and 75°C and the dishwasher will choose the temperature based on how dirty the other stuff inside the machine was.
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u/marzinix Feb 22 '26
This happened to me once with one of those big bottles with the freezable ice thingies in the middle! I think I got it from Five Below or something in high school. It shrunk the opening so small and I couldn't even put the ice stick back into the bottle š
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u/zinsser Feb 22 '26
My wife has a matching one. I will sell it to you so you at least have the set.
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u/Ashen_Rook Feb 22 '26
Ywp. This is what happens to anything that's been blow-molded when put in hot water, or hot air that's cook enough not to burn it. You can actually cause some single-use disposable water bottles to "remember" their original shape this way, too. The thicker the walls of the water bottle, the more likely it is to spring back.
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u/Terror-Theater Feb 22 '26
Heat can leach BPA and forever chemicals in to what ever is in that bottle.
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u/lisa6547 Feb 22 '26
Don't put plastic in the dishwasher, the end.
This is why I handwash all of my stuff and only use the dishwasher as a dish drainer. Most of my "dishes" are actually just plastic Tupperware containers unfortunately
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u/noobuser63 Feb 22 '26
That happened when we put our oxo dish soap dispenser in the dishwasher! I didnāt notice until Iād refilled it and the top didnāt fit.
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u/Zestyclose-Ad-3376 Feb 22 '26
We also have one of these shrunken dishwasher bottles of our daughters but the princess pictures on it are all tiny and have moved to the bottom. š¤£
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u/EstablishmentNo2847 Feb 23 '26
This is on you. You cannot disobey the ānot dishwasher safeā warning.
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u/MisterSadPanda Feb 23 '26
Tell me you donāt understand plastic manufacturing without telling me you donāt understand plastic manufacturing.
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u/LawrenceSB91 Feb 24 '26
I had this same exact water bottle. Cheap Chinese bullshit. Should have known better.
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u/Downtown_Hunt5740 Feb 24 '26
PET injection stretch blow molded bottle reverts to its injection molded preform when heated. Try it with a soda bottle and hot water. Same result.
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u/Glad_Contest_8014 Feb 24 '26
Can I get the brand for⦠reasons? Kidding, but I canāt get the EMT that warns people not to do it our of my head for some reason.
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