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-----Making a food oven from Electro-Galvanized or Galvanneal Steels
I am considering using "E.G." or possibly "galv-anneal" coated sheet steel in the design and fabrication of an oven used for preparation of food items. Peak temperatures the steel would see are 650 degrees. Are there any issues I need to be concerned with regarding potential out-gassing of hazardous constituents? If yes, is this a one-time occurrence that can be countered by going through a "seasoning phase" (oven operation at peak temperature for some period of time) prior to cooking?
Thank you,
Greg
Designer - Newberg, Oregon, USA
September 25, 2010
Hi, Greg.
I think I'd pick a different finish, like perhaps a high temperature paint. Zinc is not considered a food-safe material, plus there could be chromate passivation coatings on electrogalvanized sheet, and the melting point is under 800 deg F.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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The zinc will delaminate (peel) from the steel well below 650 degrees! The different coefficients of thermal expansion will cause them to separate below 400.
Stick with porcelain, friend!
- Chicago, Illinois, USA
October 9, 2010
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