Debra Lynn Dadd

Offgassing From Silicone Bakeware

QUESTION:

I looked all over the Internet for information. regarding toxicity for exotic parrots while heating the silicone bakeware. I couldn't find any information, but did find you.

I have two parrots in my family and I would die if anything happened to them on my account. There are so many things that will kill them and I have to be really careful. I have no matter of teflon in my home, no matter what DuPont says, it kills birds from the outgas.

So I finally contacted the manufacturer, and wanted to pass along what they had to say, so this information will be on the internet for others who are concerned about the offgassing of silicone bakeware for whatever reason. They said, "Birds
are sensitive to cooking fumes. It is possible that any cookware can emit
fumes which are hazardous or fatal to birds if heated to temperatures
exceeding 500 degrees Fahrenheit."

POSTED BY SHELLEY :: GEORGIA USA :: 10/31/2006 9:28 AM


DEBRA'S ANSWER:

Sounds like they are saying that their silicone bakeware will not release hazardous fumes unless heated to over 500 degrees, which would be unlikely to occur in a home oven.

Debra :-)


COMMENTS:

Actually, DuPont does acknowledge the fact that teflon should not be used around birds.

http://www.teflon.com/NASApp/Teflon/TeflonPageServlet?pageId=/consumer/na/eng/housewares/keyword/teflon_keyword_birds.html

POSTED BY BIRDSCOMEFIRST :: BIRDS COME FIRST :: WWW.BIRDSCOMEFIRST.ORG :: WASHINGTON USA :: 01/04/2007 11:00 AM


So, has anyone actually used this stuff? I find it very interesting but awfully flimsy. If I have to put it on a cookie sheet to put it in the oven, why not just put it in regular cookware and be done with it?

COMMENT FROM DEBRA: I've never used the bakeware. It seems flimsy to me too. I've only used the silicone baking sheets on sheet pans and I love them..


POSTED BY SUSAN :: COLORADO USA :: 01/17/2007 5:19 PM


Yes, they are flimsy; the bread ends up being a strange shape with puffed out sides. The round shapes are just fine and it's nice not to have things stick when extracting them.

POSTED BY KARE :: MINNESOTA USA :: 01/25/2007 4:29 PM


It seems to me the comments about this post have gotten off-track from the primary concern expressed by the person who posted this comment. There are myriad web sites that relate the functionality of silicone utensils and bakeware. It seems to me the main point of the post was a question about the SAFETY OF SILICONE when used in cookware.

So far, the only response to this concern (quite brief) about silicone's safety is the DuPont response.

The question will not be answered to my satisfaction until a non-biased [not a proponent, like the chemical company that makes the silicon or the company that makes products from the chemical, or an opponent, such as "alarmist ludites"] comprehensive study is performed to answer the questions: IS SILICONE COOKWARE (UTENSILS, BAKING SHEETS AND PANS, ETC.) SAFE TO USE AND UNDER WHAT SPECIFIC CONDITIONS (E.G., MAXIMUM SAFE TEMPERATURE, MAXIMUM AMOUNT OF TIME AT VARIOUS TEMPERATURES, ETC.)? DOES SILICONE BREAK DOWN OVER TIME CAUSING IT TO BE A CARCINOGEN?

I welcome any specific information about scientifically defensible studies that have anwered the above questions. If I find any, I will post about them here.

COMMENT FROM DEBRA: And I will be happy to approve that post. :-)


POSTED BY UNIQUEBOBC :: WASHINGTON USA :: 02/26/2007 1:04 PM


Hi All,

My research indicates that it is safe to use around birds. It may melt, but will not off-gas as it is made of silicon and oxygen.

According to Health Canada,

About Health Canada

Health Canada is the Federal department responsible for helping Canadians maintain and improve their health, while respecting individual choices and circumstances.
http://www.hc-sc.gc.ca/iyh-vsv/prod/cook-cuisinier_e.html

Silicone Cookware
Silicone is a synthetic rubber which contains bonded silicon (a natural element which is very abundant in sand and rock) and oxygen.
Cookware made from food grade silicone has become popular in recent years because it is colorful, nonstick, stain-resistant, hard-wearing, cools quickly, and tolerates extremes of temperature. There are no known health hazards associated with use of silicone cookware.
Silicone rubber does not react with food or beverages, or produce any hazardous fumes.

In the United States Silicone cookeware is considered safe. Per the FDA:

"Silicon Cookware is inert, FDA approved and safe up to 428 degrees F. If heated above its safe range, silicon melts but doesn’t outgas toxic vapors. This is apparently because silicon is a manmade blend of sand and oxygen (versus a synthetic plastic). Brightly colored rubbery Silicon cookware includes baking pans, baking sheets, muffin tins, spatulas, ice cube trays, molds, rolling pins and more. It is the only non-reactive, non-stick material".


Thanks Bill
http://www.birdscomefirst.org

POSTED BY BILL O'ROURKE :: BIRDS COME FIRST :: WWW.BIRDSCOMEFIRST.ORG :: WASHINGTON USA :: 02/27/2007 3:01 PM


After reading all the entries, I am fairly well convinced of the safety and efficacy of the silicone in this new bake/cookware. However, I am not enthusiastic about the bright colors contained in it, based on the assumption that they stem from artificial/synthetic dyes. I dodn't even fully trust the government approved food colorings, much less dyes that go into non-food items (especially the coal-tar derivated colors).

Should we be concerned about the dyes getting out, or are these silicone compounds so inert that the molecules don't break apart at all, even if the item accidentally melts? I know I am 'reaching' here, but I would be interested in other people's take on this issue.

--Ro ([email protected])

COMMENT FROM DEBRA: I think we can fully and correctly assume the colors in silicone bakeware are artificial dyes. There would be no reason for them to be plant-based.

As to whether or not the dyes would leach, this is beyond my understanding of chemistry, so I'm hoping a chemist will jump in and respond. It looks to me that it is all pretty well bonded together.


POSTED BY RO :: MASSACHUSETTS USA :: 03/29/2007 12:32 PM


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