How do I know if a glaze will work with the clay I have?

It's crucial that clay and glazes be matched for firing temperature. Both low- and mid/high-fire clays can bisque at cone 04, but the recommended glaze firing range will be different for each. Glazes need to mature in the recommended glaze firing range for the clay. Fire the glaze too low and it won't mature, too high and it may discolor or flow too much. Fire the clay too low and it won't vitrify enough to be durable, too hot and the clay will soften and distort or may even melt. Also, we always recommend firing test tiles to verify that the glaze is a good "fit" for the clay. Most of the time commercial glazes and clays work together, but it's still possible for them to not have the same rate of expansion and shrinkage, which can result in glaze crazing or shivering.

Can I fire these glazes hotter than the suggested temperature?

Many glazes can fire hotter than the specified firing range, but the glaze will typically flow more, and certain colors may fade or darken. Consult the manufacturer's guidelines to determine whether the glaze you have in mind can take a hotter firing and be prepared to fire test tiles to make sure you know what to expect before applying to actual ware.

What's the difference between Food Safe and Dinnerware Safe?

"Dinnerware safe" means the glazed surface meets food safety standards when it is properly applied and fired. These glazes have a smooth, durable, and crack-free surface and are suitable for food and utensil use. "Food safe" means the glaze does not contain harmful substances (such as lead or cadmium) and has been tested to ensure it doesn't release toxic materials when in contact with food. It does not meet standards for regular food use. If neither of these standards are mentioned, the glaze should be used for decorative applications only.

Can all glazes be used on dinnerware?

No. Only glazes that state "dinnerware safe" are appropriate for regular food and utensil use. Please verify prior to purchasing that the glaze is acceptable for dinnerware if that is your intended use.

What if I want to use a glaze that fires hotter than my clay is intended for?

This is not a good idea. Firing the clay too hot can destabilize or even melt clay that's meant for lower temperatures. Firing the glaze too low will not provide the heat necessary for it to mature to its expected appearance. The clay and glaze should be matched for firing temperature.

I don't find the glaze color I'm looking for. Can I mix glazes to get different colors?

Sometimes you can. Look at the product description for the glaze to see if it notes that colors can be mixed. Otherwise, just know that any mixtures will be experimental; yellow+blue may not give you green for example, and take meticulous notes so you can reproduce any favorable outcome.

My glaze is not the color I expected out of the jar. Should an Aqua glaze really look red in liquid form?

Ceramic glazes can look very different in liquid form compared to the fired result. Don't be alarmed if the liquid color is quite different.

Mid to High-Fire Glazes and Effects

Mid-fire glazes and high-fire glazes are used on pieces made from stoneware and porcelain clay. These glazes allow artists to achieve a range of effects on pieces that are generally more functional and durable than those fired in low-fire env...

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+ 8 Options
Amaco Cosmos Glazes
+ 8 Options
Item #: 83429
4.5 out of 5 stars
Ceramics take on an otherworldly beauty with the celestial allure of Amaco Cosmos Glazes. With every brushstroke, you can summon galaxies of iridescen...
+ 12 Options
Coyote Archie’s Glazes
+ 12 Options
Item #: 83440
5 out of 5 stars
Coyote Archie’s Glazes flow fluidly over bisqueware and underglazes to create gorgeous swirls and unique striations that ensure no two pots are ever t...
+ 2 Options
Mayco Stoneware Magma Glaze
+ 2 Options
Item #: 83419
4.4 out of 5 stars
With Mayco Stoneware Magma Glazes, you can transform the look and feel of your wares by giving them a rough, cratered surface. These mid-fire glazes c...
+ 6 Options
Amaco Matte Shino Lead-Free Glazes
+ 6 Options
Item #: 30495
4.8 out of 5 stars
(28) number of reviews
Amaco Matte Shino Glaze create a soft, muted finish that highlights the organic and rustic charm of pottery. Perfect for achieving a subtle and authen...
+ 11 Options
Mayco Ceramic Glaze Design Liners and Set
+ 11 Options
Item #: 30488
4.6 out of 5 stars
(61) number of reviews
This concentrated, clay-based pigment is packaged in a 1.25 oz squeeze bottle with a metal writer tip. It fires to a matte finish. Mayco Designer Line...
+ 4 Options
Amaco Phase Glazes
+ 4 Options
Item #: 83434
4.6 out of 5 stars
Give your pottery beautifully unique looks with Amaco Phase Glazes. These glazes are designed to induce controlled phase separation, resulting in gorg...
+ 8 Options
Amaco Ceramic Printing Inks
+ 8 Options
Item #: 83435
4.7 out of 5 stars
Amaco Ceramic Printing Inks give you a unique way to apply vibrantly colored designs to your ceramic projects. Ideal for screen printing, monoprinting...
+ 12 Options
Spectrum Shino Glazes
+ 12 Options
Item #: 30598
4.5 out of 5 stars
Spectrum Shino Glazes are a range of mid-fire (Cone 5/6) glazes in beautiful multi-tonal satin finishes. Although developed for a Cone 5/6 oxidation e...
+ 17 Options
Spectrum Nova Stoneware Glazes
+ 17 Options
Item #: 83422
4.1 out of 5 stars
Spectrum Nova Stoneware Glazes produce stunning effects during the firing cycle. Mainly formulated from raw materials, these economical, Cone 4–6 glaz...
+ 12 Options
Coyote Fantasy Glazes
+ 12 Options
Item #: 83460
5 out of 5 stars
Coyote Fantasy Glazes are formulated for Cone 5/6 firings in glossy, satin, matte, and metallic finishes. Many glazes in the series break over texture...
+ 11 Options
Amaco Crawls Glazes
+ 11 Options
Item #: 83465
5 out of 5 stars
Add striking, sculptural texture to your ceramic work with Amaco Crawls Glazes. These mid-fire glazes are specially formulated to shrink during firing...
+ 9 Options
Laguna Crackle Glazes
+ 9 Options
Item #: 83409
4.6 out of 5 stars
For use with smooth-body stoneware clay, Laguana Crackle Glazes take on a luminous look with the interplay of fractured light and color. The crackle-l...
+ 4 Options
Mayco Washes
+ 4 Options
Item #: 30480
5 out of 5 stars
Bring colorful dimension to your ceramics projects with just one to two coats of Mayco Washes! These concentrated metallic glaze colorants can be used...
+ 6 Options
Laguna Crystal Blossom Glazes
+ 6 Options
Item #: 83405
4.2 out of 5 stars
With two coats of Laguna Crystal Blossom Glaze and a simple firing schedule, a unique blossom pattern appears to form on your earthenware. You can ach...
+ 9 Options
Laguna Dynasty Textured Glazes
+ 9 Options
Item #: 83407
4.3 out of 5 stars
Give your earthenware a glossy, earth-tone finish inspired by nature’s semi-precious stones with Laguna Dynasty Textured Glaze. It’s recommended to us...
Amaco Gum Solution
Item #: 30439
4.8 out of 5 stars
Out of Stock, Expected 05/22
Mix Amaco Gum Solution with water and add to thick glazes to improve brush ability. Gum Solution slows drying time to prevent cracking. Restore old, t...
+ 15 Options
Laguna Dynasty Matte Glazes
+ 15 Options
Item #: 83412
4.4 out of 5 stars
Inspired by nature’s semi-precious stones, Laguna Dynasty Matte Glaze imbues your earthenware with a matte, vintage look. It’s recommended to use two ...
Mayco Stoneware Clear Glaze
Item #: 30588
4.9 out of 5 stars
In stock online
With just one to two coats, Mayco Stoneware Clear Glaze creates a crystal clear protective layer that’s food safe and dinnerware safe! It performs con...
+ 6 Options
Amaco Gloss Shino Lead-Free Glazes
+ 6 Options
Item #: 30495
4.5 out of 5 stars
Amaco Shino Glaze offers a polished finish that amplifies the brilliance and richness of the glaze's hue. Colors vary depending on the thickness of th...
+ 2 Options
Botz Plus Glaze Enhancer
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Item #: 83436
4 out of 5 stars
Get the most out of our stoneware and earthenware glazes with Botz Plus. This enhancer increases the brilliance of your ceramics, resulting in beautif...
+ 12 Options
Spectrum Semi-Transparent Stoneware Glazes
+ 12 Options
Item #: 83423
4.6 out of 5 stars
Show off fine details in your stoneware with Spectrum Semi-Transparent Stoneware Glaze. This Cone 4–6, mid-fire, high-gloss glaze appears darker where...
+ 12 Options
Coyote Texas Two-Step Oilspot Glazes
+ 12 Options
Item #: 83443
5 out of 5 stars
Beautiful in their own right, each of these Coyote Texas Two-Step Oilspot Glazes interacts with the others to create strikingly gorgeous effects. Ever...
+ 6 Options
Mayco Stoneware Classic Dry Glazes
+ 6 Options
Item #: 30588
5 out of 5 stars
Mayco Stoneware Classic Dry Glazes are a potter's dream. Simply add water to create a perfectly consistent mixture for dipping or pouring. The colors ...
Mayco Stoneware Zinc Free Clear Dry Glaze
Item #: 30588
1 out of 5 stars
In stock online
Intended for use over glazes containing chrome-based pigments, Mayco Stoneware Zinc Free Clear Dry Glaze gives stoneware projects a brilliant, crystal...
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Mayco Stoneware Mudcrack Glazes
+ 2 Options
Item #: 83420
4 out of 5 stars
Add visual interest to your bisqueware with Mayco Stoneware Mudrack Glazes. These mid-fire glazes can be applied directly to bisqueware to give it a c...
+ 6 Options
Coyote Matt Glazes
+ 6 Options
Item #: 83461
5 out of 5 stars
Coyote Matt Glazes create a dependable, non-glossy finish with strong color tone and visual variety. Designed for Cone 6 firings, these glazes are exc...
+ 10 Options
Spectrum Raised Accent Colors
+ 10 Options
Item #: 83400
3.3 out of 5 stars
Add dimension to your ceramic creations with Spectrum Raised Accent Colors. These slip-based colors are specially formulated for raised and textured d...
+ 6 Options
Coyote Mottled Glazes
+ 6 Options
Item #: 83442
4.3 out of 5 stars
Coyote Mottled Glazes offer an easy way to create ceramics with gorgeously variegated colors. Designed to be fired at Cone 5-6 oxidation, these non-to...
+ 2 Options
Mayco Stoneware Crackle Glaze
+ 2 Options
Item #: 83417
2.5 out of 5 stars
Add vintage appeal to your stoneware with Mayco Stoneware Crackle Glazes. These glazes deliver a fine crackle pattern at mid-range firing temperatures...
+ 8 Options
Laguna Dry Lakes Glazes
+ 8 Options
Item #: 83406
5 out of 5 stars
Laguna Dry Lakes Glaze has a unique texture and pattern that’s inspired by the National Parks in North America. It works with most clay bodies—includi...