May 2026: We are continuing a major code rewrite. Please contact us if you find issues. Thank you.

03DSFF - Cone 03 Fast Fire
04DSDH - Low Temperature Drop-and-Hold
BQ1000 - Plainsman Electric Bisque Firing Schedule
BRTF05 - Bartlett Fast Glaze Cone 05
BRTF6 - Bartlett Fast Glaze Cone 6
BRTS6 - Bartlett Slow Glaze Cone 6
BTFB04 - Bartlett Fast Bisque Cone 04
BTSB04 - Bartlett Slow Bisque Cone 04
BTSG05 - Bartlett Slow Glaze Cone 05
C04PLTP - Plainsman Low Temperature Drop-and-hold
C10RPL - Plainsman Cone 10R Firing
C5DHSC - Plainsman Cone 5 Drop-and-Hold Slow-Cool
C6DHSC - Plainsman Cone 6 Drop-and-hold, Slow Cool
C6IRED - Cone 6 Iron Reds
C6MSGL1 - Mastering Glazes Cone 6
C6PLST - Plainsman Cone 6 Electric Standard
FSCG1 - Shimbo Crystal Schedule 1
FSCGB1 - Shimbo Crystal Holding Pattern 2
FSCGCL - Shimbo Crystal Celestite Schedule
FSCGWM - Wollast-O-Matte Fara Shimbo Crystalline Glaze
FSCRGL - GC106 Base for Crystalline Glazes
FSHP1 - Shimbo Crystal Holding Pattern 1
FSHP3 - Shimbo Crystal Holding Pattern 3
FSNM5 - Fa's Number Five
MDDCL - Medalta Decal Firing
PLC6CR - Cone 6 Crystal Glaze Plainsman
PLC6DS - Cone 6 Drop-and-Soak Firing Schedule
QICA - Quartz Inversion Cracking Avoider

"FSCGB1" Firing Schedule

Shimbo Crystal Holding Pattern 2

No kiln will be able to achieve one or more of these rates of climb or drop. And, all but very small or thin-walled ware would crack. Fara’s intention is that the degree to which it is possible will determine how well crystals will grow.

Step	°C	°F	Hold	Time
1	100°C/hr to 200C	180°F/hr to 392F	0	2:02
2	250°C/hr to 500C	450°F/hr to 932F	0	3:14
3	500°C/hr to 1260C	900°F/hr to 2300F	0	4:45
4	999°C/hr to 1075C	1798°F/hr to 1967F	90min	6:26
5	999°C/hr to 1100C	1798°F/hr to 2012F	15min	6:43
6	999°C/hr to 1075C	1798°F/hr to 1967F	60min	7:44
7	999°C/hr to 1050C	1798°F/hr to 1922F	15min	8:01
8	999°C/hr to 1075C	1798°F/hr to 1967F	60min	9:02

Start temperature assumed: 25°C or 75°F
"Fahrenheit degrees" is not the same as "degrees Fahrenheit". A 100° reading on a Fahrenheit thermometer is equal to a 37° reading on a Celcius thermometer. But "100 Fahrenheit degrees of temperature change" is equivalent "55 Celsius degrees of change". That is an important distinction to understand the above temperature conversions.

Related Information

Bory 1 crystals grown at 1260C

This picture has its own page with more detail, click here to see it.

These manganese-colored Bory 1 crystals were grown on White Stallion porcelain using the FSCGB1 firing schedule. The piece was fired in an electric kiln to 1260°C.

Links

Recipes	BORY1 - Bory 1 Crystalline Glaze Cone 6-10 - Added Gerstley Borate lowers temperature to cone 6, titanium to seed crystals
Typecodes	Oxidation Firing

PayPal

No tracking, No ads, No paywall, No transient content!
Just organized, concise information constantly updated and improved.
Was this helpful? Consider supporting me.

By Tony Hansen
Follow me on

Got a Question?

Buy me a coffee and we can talk