Corderite vs Mullite once and for all.

[Atheen_]

I have a Corderite 15x15 pizza stone. I want to upgrade it to a 15x20. It's a custom size, but I found a company that does that kind of thing, the https://www.californiapizzastones.com/pizza/stones/custom-cut-pizza-and-baking-stones.php.

Only problem: their stones are in Mullite. It's still ceramic, but it's not Corderite. And I'm used and comfortable with baking with the latter.

And so, I've scourged the internet for LITERALLY HOURS today, to find clear, simple, information, about the difference about cooking pizza on a Corderite stone, as opposed to a Mullite stone. To no avail. People wax lyrical for 2 pages, they tell you which one they like best, but they don't give you clear side by side comparison.

No more. I found this little gem. Told me everything I needed to know. It's essentially the same, at least when it comes to conductivity and capacity. Which is essentially all you care about since they can both go much higher than the regular oven.

For full size by side comparison, https://www.makeitfrom.com/compare/Cordierite/Mullite.

Hopefully it will save someone else the hassle.

Long live the Pie! 🍕


Atheen

[02ebz06]

I have two 3/4" thick FibraMent pizza stones that I use in my oven or on the grill.
Very happy with them. Never looked to compare to any other types since these do a great job for pizza or breads.

[billg]

Buy a kiln shelf from axner.  They are awesome for pizza in the home oven.  I Have an 18x18x1. 

[Atheen_]

I have two 3/4" thick FibraMent pizza stones that I use in my oven or on the grill.
Very happy with them. Never looked to compare to any other types since these do a great job for pizza or breads.

I thought about it, but searching this forum, I found out that corderite is way more conductive than Fibrament. Made me pause, tbh. My pizza cooks at 500 for exactly 7 minutes for perfect melted goodness and golden dough bottoms, atm. How long du you cook your pizza at 500 with Fibrament?

[Atheen_]

Buy a kiln shelf from axner.  They are awesome for pizza in the home oven.  I Have an 18x18x1.

I'm not sure I could fit a shelf of 18 deep on my GE Profile rack. 16, possibly, but 18? It might come too close to the door window. I'll have to measure again. 🤔

How long do you cook your pizza at 500 on your Kiln shelf?

[02ebz06]

On the FibraMent, it was 6-7 minutes at 550f in home oven, depending on toppings.
On the grill, I was able to cook at 650. Never timed it,

Haven't used them for pizza since getting an oven.

[Pizza_Not_War]

When I first got a Fibrament stone and a gas 2stone grill I was able to do a 45 second pizza @ 1000 F. Those were some hairy times. Normally did 2 minute baked in the 800F range.

[TXCraig1]

I have a Corderite 15x15 pizza stone. I want to upgrade it to a 15x20. It's a custom size, but I found a company that does that kind of thing, the https://www.californiapizzastones.com/pizza/stones/custom-cut-pizza-and-baking-stones.php.

Only problem: their stones are in Mullite. It's still ceramic, but it's not Corderite. And I'm used and comfortable with baking with the latter.

And so, I've scourged the internet for LITERALLY HOURS today, to find clear, simple, information, about the difference about cooking pizza on a Corderite stone, as opposed to a Mullite stone. To no avail. People wax lyrical for 2 pages, they tell you which one they like best, but they don't give you clear side by side comparison.

No more. I found this little gem. Told me everything I needed to know. It's essentially the same, at least when it comes to conductivity and capacity. Which is essentially all you care about since they can both go much higher than the regular oven.

For full size by side comparison, https://www.makeitfrom.com/compare/Cordierite/Mullite.

Hopefully it will save someone else the hassle.

Long live the Pie! 🍕


Atheen

There are some numbers in there that are not right. For example: the thermal conductivity of corderite is 3.0 W/mK not 1.3-1.7.

I'd consider that site unreliable.

[Atheen_]

There are some numbers in there that are not right. For example: the thermal conductivity of corderite is 3.0 W/mK not 1.3-1.7.

I'd consider that site unreliable.

Funny you should drop in, I quoted one of your posts higher in this topic. 😉

Great, so you're telling me the ONE bit of info I found about the corderite vs mullite on the web.... Is wrong. 🤣 🤦‍♂️

How do you feel about corderite vs mullite vs fibrament?

[billg]

You don't have to buy an 18 by 18.  You can get them in multiple sizes.  They also sell posts that lift the kiln shelf off the stove rack in order to get it above the curve in the back of the oven racks so it allows you to get a bigger kin shelf while still having enough room to close the oven and have circulation.

[TXCraig1]

I had good results on Fibrament in my grill mod at 725F (2:00 - 2:30 bake times). In the oven, it's not conductive enough, IMO. Personally, I like steel in the oven though plenty of folks have good results on cordierite. I have no experience with mullite nor can I remember anyone posting results on it here.

[jsaras]

I had good results on Fibrament in my grill mod at 725F (2:00 - 2:30 bake times). In the oven, it's not conductive enough, IMO. Personally, I like steel in the oven though plenty of folks have good results on cordierite. I have no experience with mullite nor can I remember anyone posting results on it here.

Fibrament takes forever to preheat and the results are disappointing. 

[scott r]

I think what is the best stone really depends a lot on your heat source.  Something with lots of bottom heat like a grill, or certain home ovens can benefit from the lower thermal conductivity of fibrament. My fibrament stone is my favorite type of stone for MY home oven and the way I use it, but I have different stones for going to other peoples houses to make pizza.    I put the fibrament on the floor of my oven since I have one of those ovens without exposed elements. I have no problem getting a 5 minute bake with this setup. If I do this with more conductive stones such as corderite the bottoms of my pizzas burn. 
.