Can ice cube trays release toxic substances like BPA?

omega3

Senior member
Feb 19, 2015
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Bought an ice cube tray in very flexible material (synthetic rubber or silicone i think) in a decent store but not too much info on the package aside from "made in china" which is always something to be careful about. It doesn't mention if it is BPA free or not.

So now I was wondering if I use this to make ice cubes so fill with water, put in freezer, if this can release toxic substances like BPA if i put these cubes in my drinks and if the level could be high enough to be dangerous?

I will first put it in the dishwasher for hygiene so i hope the heat from that can't make it release toxins afterwards?

Thanks for all good feedback.
 

pcgeek11

Lifer
Jun 12, 2005
22,100
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There is no way to know without information that you do not have....

If you really have doubts, don't use it.
 

omega3

Senior member
Feb 19, 2015
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My point was more if cold temperatures (freezer) can release something like BPA or is this only with heating at a certain temp?
 
Jun 18, 2000
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There is no BPA in silicone, so if you're concerned about it, the question is whether or not the tray is made of silicone or plastic.
 

lxskllr

No Lifer
Nov 30, 2004
59,062
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Chemicals can be released under cold temperatures, but generally not as much as hot. I wouldn't spend a lot of time worrying about it. You probably injest more carcinogens/mutagens/whatever walking next to a road. In the future, give more consideration to your purchases.
 
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omega3

Senior member
Feb 19, 2015
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I was searching if BPA can dissolve in water but can't find a clear answer. It can dissolve in "alkaline foods" so not sure if tap water falls into that category?
 

DrPizza

Administrator Elite Member Goat Whisperer
Mar 5, 2001
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Well, if it requires alkalinity to dissolve, you need to know if your water is perfectly neutral, slightly acidic, or slightly basic. What's the pH of your water?
 

Six

Senior member
Feb 29, 2000
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The silicone cover is fine. It's the tray I would be worried about. I would not use it. The bleach in tap water will catalyze the release of BPA from your ice tray causing metal retardation and reproductive issues later on.



j/k j/k
 

Jeff7

Lifer
Jan 4, 2001
41,596
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I don't currently have any ice cube trays to look at, but what I remember of the feel and flexibility points to polypropylene or polyethylene.

I think polycarbonate is the most common one with the BPA issue, and I wouldn't expect PC to be used in ice cube trays. Polypropylene would be nice because very few things stick to it, and some of the polyethylenes are fairly flexible.
 

Carson Dyle

Diamond Member
Jul 2, 2012
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I've always wondered why ice cube trays always have a very strong smell/stink to them. Whether that's the materials they use (which has to be flexible when very cold or it will crack), or if they pick up those odors in the freezer. The ice cubes seem fine.