Can this be left in the oven all the time?

Absolutely! It can actually act as a heat sink which will help keep temperatures consistent and controlled when baking things other than pizza.

Can you leave this in the oven and put a pyrex casserole dish on it to bake?

Do not put glass on top while in the oven.

To the person who wrote use steel wool for cast iron that is absolutely 210% incorrect. Even if your cast iron comes preseasoned you need to reseason it with high heat cast iron seasoning oil. After you do this it will be good from day one the very first time you use it. When you cook with cast iron you use a metal spatula that's nice and stiff, scrape everything loose out of the bottom insides of your pan then wipe it out with a paper towel if you still have anything stuck to it you can go back over a little bit more followed by using a stainless steel chainmail scrubber that are made of stainless steel. Never use any kind of liquid to clean cast iron especially something acidic like vinegar which will cut the seasoning out of your pan. When you finish scraping and scrubbing it should be wiped clean using a paper towel. Put a little bit of your high heat cast iron seasoning oil in your pan and wipe it around everywhere inside including the very top edge with a paper towel saturated with a little of your high cast iron seasoning oil. If this is done properly it will look like it's never been used I have a Lodge square cast iron frying pan that is more than 3 years old and you cannot tell that it's ever been used. It looks as good now as the day it was purchased and shows no signs of ever being cooked on even once. Nothing has stuck to it since day one because I reseasoned it doing what I previously stated before using it the first time. I have cast iron pans that are probably 80 years old or more they have nothing sticking on the inside and they look shiny and nice they have never been used in water. Nothing sticks to them. They are dark, nearly black because they're so old, but if you look on the inside there's not a trace of anything stuck to them. Follow my instructions and you won't be sorry. I know what I'm talking about, it works. The worst thing you can do with cast iron is put water anywhere near it, especially vinegar. If you cook sauces that have tomato paste in them they are highly acidic and they take off your seasoning. Make sure you wipe on a liberal coat of your high heat wipe it out immediately after cleaning and cooking. People look at my Lodge frying pan and they cannot believe that it's ever been used it shows no signs of ever being used even once. Please heed my advice and you will never regret it. God Bless Y'all Jimmy in NC....

Would this work well if I place a Dutch oven on it to bake bread.

Place loaf directly on preheated steel. You can then put upside down pre-heated Dutch oven over loaf to capture the humidity/steam of the dough. Bake for 15-20 min then remove the Dutch oven base to allow the loaf to brown. I use a Challenger bread pan (shaped more oblong) with same technique. Great breads come out of this…

Product Care Instructions	Hand Wash
Material Type	3/16" Standard Version
Shape	Square
Item Dimensions L x W x Thickness	20"L x 14"W x 0.19"Th

THERMICHEFby Conductive Cooking – Extra Large Pizza Steel Plate for Oven Cooking and Baking (3/16” Standard, 14”x20” XL) - Made in USA

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