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Hadar Jacobson says...
Different types of carbon can differ in three different ways:
(1) The amount of ash they create
(2) The actual temperature they reach when the kiln displays a
(3) How evenly they distribute the heat within the firing box.
This product is best at all three of these things.
Using standard test bars we have exhaustively tested MANY prime
sources of coconut carbon and have settled on a single source of the best carbon
formula for the needs of our customers who want to fire non silver as well as
sliver metal clays that require carbon firing. While we donít claim any magic
for it, we DO claim reliable consistent results. *In extensive trials we have
demonstrated that our simple recommended firing process will result in just a
4% charcoal consumption per firing when the most demanding copper clay
temperatures of 1800ļF for 3 hours is used. The 4% consumption rate will be
even lower when firing copper for 2 hours and even lower still when firing
bronze clays for the even shorter times and lower temperatures recommended.