Mid-Fire (Cone 5-6) Ceramics

Mid-Fire or Mid-range Ceramics are terms commonly associated with a Cone 5-6 firing. There are discrepancies that exist over the use of the term as many potters consider anything over cone 5 "high-fire". Veteran potters will only consider cones 8, 9, 10, 11 high fire but many people are realizing that those higher temps are unnecessary and use excess energy. People use Mid-range firings to achieve the durability and appearance of high-fire work in a more energy efficient way. Mid-range porcelains are becoming very popular these days.
It is easy to accomplish in most kilns and can produce vitreous ware with spectacular glaze effects similar to what can be achieved in a gas kiln, especially if control is maintained on the down ramps.

Typically the cycle for mid-range involves a bisque firing from anywhere between cone 012 and cone 04 and a glaze firing to temperatures from cone 5-7. People fire to mid-range temperatures in both electric, gas and alternate fuel environments.


The challenges you face with mid-range firing are standard of the ceramic process, the majority of which will be glaze issues. Glaze fit, pin holes, glaze bubbles; These are all problems that can be sorted out with adjusted firing schedules. L&L is happy to offer our suggestions on any of these issues and there in unlimited information regarding them all.


The majority of our kilns are designed for this firing range. Though a kiln may have the capability to go to cone 10, it exponentially decreases the lifespan of your replaceable parts. The mid-fire ceramic spectrum allows for a broad selection of colors and effects, a fully vitrified clay body and extended kiln life, all at lower cost than going to cone 10.

Recommended Kilns

The L&L Flagship Kiln: Six popular Easy-Fire models. Multi-Zone control. Sectional. Easy maintenance. Sizes from 2.5 to 10.2 cubic feet. Most models and voltages are Cone 10.
The perfect hobby kiln with a 12 foot long 30 amp cord for plugging into a dryer outlet. One-Touch Simple Control. Cone 10.
Small Kiln for Hobby Use and Glaze Testing. One-Touch or DynaTrol program controls. Various voltages and amp ratings.
Large Heavy-Duty Front-Loading Kilns. Includes 4-1/2" K25 arched roof, door elements, and 5" of multi-layered insulation. Multi-Zone DynaTrol. Cone 10.
Customizable Automatic Zoned Top-Loading Kilns - up to 45" tall. Multi-Zone control. Sectional with plug in control panel. Easy maintenance. Sizes from 2.6 to 17 cubic feet. Most models and voltages are Cone 10.
Large Square and Rectangular Production kilns. Multi-Zone Control. Floor-standing panel. Spring-loaded hinge. Sectional. Easy Maintenance. Sizes From 5 To 34.5 Cubic Feet. Cone 10.
Bell-Lift Production Kilns