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Aug 24, 2007 07:17 PM

question about silpat mats

has anyone else experienced an odd smell when using a silpat in the oven? mine gives off an almost-burning plastic type odor, and it usually imparts this flavor into whatever has been baked on it (usually cookies). any idea on how to get rid of this problem? or should i just get a new one??

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  1. I have to think that you might be using your mat in a oven that is too hot. silicone is non-reactive and should not impart any smell. I never use my silpat in a oven that is over 450F.

    I am wondering if your mat in new and you didn't wash off a coating or oil that was left over from the manufacturing process.

    1. Is this a real Silpat or another brand? I've read that some companies use "fillers" with the silicone and they're not as good or non-stick.

      I've never had any trouble or odor from my Silpat.

      3 Replies
      1. re: Jennalynn

        i have one original silpat and one exopat (which i've read is an acceptable substitute). both have been washed and used many, many times, and they STILL have that odor! and i've never used them in an oven over 450 degrees - i mostly just use them for cookies up to 375 degrees or so. it's just so frustrating, because they are such a great alternative to parchment paper.

        1. re: phyllisw

          The Silicone Rubber used to make Silpat has no odor whatsoever. The odors originate in either the "curative" which is used to "vulcanize" the Rubber (and specifically the "byproducts" of the vulcanization process), or the chemical used to bond the Silicone to the Glass Fabric. The vulcanization of the Silicone converts the Rubber from the consistency of "plasticene" to a fully cured and functional product. The only way to get rid of this odor that I can think of is to "post cure" the Silpat in your oven at a temperature high enough (likley 400F) to "sublimate" the vulcanization byproduct i.e. convert it from a solid to a gas. This is best done with your oven on convection, and your fan over the oven on in order to remove any volatiles. I am in the business of processing Silicone Rubber Products and I find it hard to believe that Rubber products intended for use in contact with Food (FDA 177.2600) are not being "post-cured" before they are sold to the public. These Mats originated in the Commercial Baking business where they have been used for years (along with Silicone Mold Release for Metal Baking Pans) and these Mats have always been postcured in order to comply with the FDA standard.

          1. re: Egger

            Egger, is there any chance I can talk to you offline about your experience in the industry? I'm not sure if it's ok to ask this here, but I didn't know how else to message you.

      2. I have been using mine for at least two years, and have never had that problem. Actually I love them. If I were you, I would take them back to the store where you bought them, and get new one's.