· 2017. 2. 16. · the soda-firing process is unique because at 2250 f a mix of soda ash, baking...

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Page 1:  · 2017. 2. 16. · The soda-firing process is unique because at 2250 F a mix of soda ash, baking soda, calcium and wood chips are put in the kiln to create the outer glaze of the