Try a glass chopping board or two. Or, if you really want to be cheap,
a 1 litre carton of whatever heated to near boiling.
You should be able to get a stone offcut from a monumental mason,
free. Any old stone should work.
OK but its limestone so don't use direct flame.
I am told soapstone is the stuff to use, apparently cooking pots can
be made from it. Some cultures cook on "injera" which are directly
flame heated ceramic hobs.
Andrew Heggie < email@example.com wrote:
In the Pacific they use heated stones to line a pit in the earth for
feasts. IIRC basalt is much used, possibly by necessity on volcanic
islands. Of course you get the advantage of insulation from the earth
School of Life Sciences, University of Dundee, Scotland
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