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Now days there are plenty of firing choices. High –fire with reduction atmosphere  is one of  the most  fascinating  firing techniques  2305F
to  2419F.
There are two atmospheres that may develop in a kiln as it fires – oxidation and reduction. If you shut off most of the air, the incomplete
combustion produces  smoke and carbon. This incomplete combustion will create a reducing atmosphere. The oxygen will be drawn from
the clay body or from the oxides in the glaze; they are then said to be reduced. For example, copper oxide fired in a oxidizing atmosphere
will turn green, but in a reduction atmosphere it becomes red. Ash and shino glazes are fired at gas kilns at reduction atmosphere.
“Blue Creek Bottles”; thrown on the   
wheel and altered, multi-layered slips;  wood-
ash glazing, high fired in a gas kiln, multi-media
with natural stones and sand.
the glazing and enamels, high
fire in a gas kiln.
“Pink Snow Flakes ”; thrown
on the wheel , crystalline glazing,  
high fire in a gas kiln.
“Zen Jar ”; thrown on the
wheel , crystalline glazing ,
high fire in a gas kiln.
“Flower vase”; thrown on the
wheel  and altered, multi-
layered and under-glazing, high
fire in reduction in a gas kiln.
“Lava Bubble Vase”; thrown
on the wheel  and altered,  oxide
washes, shino and ash glazes, high
fire in reduction in gas kiln.
“Black Root Jar”; thrown
on the wheel   and altered,
black slip application,  high
fire in reduction in a gas kiln.
“Multicolor Rock Bowls”; thrown on
the wheel  and altered, multi-layered
glazing, high fire in reduction in a gas kiln.
“Zen Red Iron Jars”; thrown
on the wheel  and altered, multi-
layered glazing, high fire in a
reduction in gas kiln.
“Under-The-Sea Bowl”;
thrown on the wheel  and altered,
multi-layered glazing, high fire in
reduction in a gas kiln.
“Organic Bottle”; thrown on the
wheel, multi-layered shino glazing,
high fire in reduction in a gas kiln.
“Yellow Pitcher”; thrown on
layered glazing, high fire in
reduction in a gas kiln.
High Fire Stoneware in Reduction
"Agate Stone Vessel"; thrown on
the wheel and altered. Multi-layered
glazes were applied to achieve visual
depth. Fired in a gas kiln. Thin
branches and copper wire and
integrated with clay create organic feel.
thrown on the wheel and altered.
Multi-layered r were applied to achieve
Natural stones: amber, carnelian and
"
Amber Stone
yellow jade integrated with
clay.
"Lapis Stone Vessel": This jar is
thrown on the wheel and altered.
Multi-layered  glazes were applied to
achieve visual depth. Fired in a gas kiln in
reduction. Natural stone lapis lazuli  
integrated with clay .
My Favorite Glaze Recipes for Reduction Firing at cone 10
Name of the Glaze
Ingredients
Weight( %)
Name of the
Glaze
Ingredients
 
COPPER RED
Note: Should be sprayed or dipped.
The glaze is runny if thick but thick
layer produces even brighter red.
Custer Spar
Whiting #10
Texas Dolomite
EPK
Silica
Gerstley Borate
Zinc Oxide
TOTAL
add: Copper
Carbonate
Tin Oxide:
40.00
10.00
5.00
5.00
25.00
10.00
5.00
100
0.5
1.00
ORANGE
SHINO
Note: Great steady
glaze, not runny even
when thick. Satin
surface.
Color  varies from
tan to bright orange
depending on
thickness.
Nepheline Syenite
Soda Ash
Kona Feldspar
Spodumene
Calcined Kaoilin
Cedar Heights Redart
EPK
TOTAL
40
4
10
16
10
5
15
100
WEISER
TURQUOISE
Dolomite
Custer Feldspar
Ball Clay
Flint
TOTAL
add: Chrome Oxide
Cobalt Carbonate
24
63
9
4
100
1.5
0.5
     
This basket is thrown on the wheel
and altered. Shino glaze gives the
subtle emphasis to the hand
carvings. Multiple glaze and oxide
wash applications.













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