oh please, glass at that temp needs annealing, no question about it.

--

"StuPedaso" <StillAwake@2am> wrote in message
...
> I've heated wine and cola bottles to a very high temp before, and
> never had one crack or break. Was heating them to around 1400ºC, so
> hot they become like taffy, and stretch of their own weight.
>
> Anyway, the place I used to work, has a big 4'x4'x4' oven, and I
> thought baking 150 to 200 used bottles at once would be a real time
> saver.
>
>
> On 20 May 2006 07:43:04 -0700, "Droopy" > wrote:
>
> >Like wine bottles?
> >
> >They are not made of tempered glass. Heating them that high is
> >unadvisable
>
> >StuPedaso wrote:
> >> I have a bunch of bottles I need to clean. Was thinking maybe I could
> >> give them a good rinsing, then bake them at 350ºF for an hour or so
> >> (maybe after my wife cooks some pizza). Anyone ever use this method?
> >>
> >>
> >> Or maybe 451º would burn the lables off, then a quick air blast to get
> >> rid of the ashes.
> >> Stu
>