Hi

I hate using foil and just discovered enamel baking trays.  It's  
better non-stick than teflon and looks pretty hard wearing.

But since pretty much everything today releases some sort of deadly  
toxin, I wondered if there was any reason I shouldn't be using it?  I  
have better things to do with my life than scour steel cooking  
equipment but I try to avoid things that are outright poisonous.   
According to Wikipedia though, it's just melted glass powder.

Thanks
Ashley