"Always start out with a larger pot than
what you think you need."
— Julia Child

Are Pyrex Glassware Oven Safe

Elaine Sutton
• Tuesday, 24 November, 2020
• 14 min read

My mother originated the recipe in Pennsylvania, I brought it to Texas when I married, I'm still making it in California, and my daughter treats her friends to this oldie in Colorado. I enjoy this rich, creamy casserole, a special dish from this area's holiday recipe collection.

pyrex oval safe oven dish glassware bakeware kitchenware casserole lidded cookware century mid carol antiques true
(Source: www.truevintageantiques.com)


Taste of Home While this special chicken and wild rice casserole is perfect for a company dinner, it's so good that I often make it for everyday family meals. I crush tortilla chips to form a bottom layer, then spread on refried beans, a spicy meat mixture and cheese.

Pyrex kitchen glassware is popular because it is durable and strong. The Pyrex Use & Care guidelines state that Pyrex glassware can be used for warming, cooking, baking, and reheating food in microwave ovens as well as preheated standard and convection ovens.

If your Pyrex is in the fridge or freezer, allow it to come to room temperature before you put it in the oven. Also, never use Pyrex glassware on top of the oven, e.g. on ceramic or induction cook tops or burners.

The Pyrex Use & Care guidelines state that Pyrex glassware can be used for warming, cooking, baking, and reheating food in microwave ovens. Pyrex is a kitchen glassware brand with remarkable heat capacity.

In response to a customer’s question, the company’s consumer care department replied that the glassware has no maximum temperature so long as you preheat the oven before putting it inside. If you are careful when using your Pyrex, there is no reason it will shatter inside the oven or on an open stove.

pyrex oven corning ware dutch glass casserole qt spice
(Source: www.ebay.com)

Instructions from the company forbid you from adding liquid to hot Pyrex, not to put it directly on the countertop, sink, or metal surface, not to put it on a cool or wet surface, and not to handle it with a damp cloth. Don’t use your Pyrex for cooking dishes that need high heat techniques.

Avoid placing your hot Pyrex on top of the metal eyes of your open stove. Make sure that the cloth or oven mitt you are using to handle hot Pyrex is thoroughly dry.

You don’t want to suffer burns because of holding hot glassware with wet gloves or cloth. Don’t use Pyrex to cook, broil, heat, or grill food on a stove top or toaster oven.

If you need to cook food straight from the freezer, start by adding some liquid to the glassware. This technique will cause the frozen fluids from the food to thaw and get to room temperature.

It will also prevent the frozen food from subjecting the glassware to sudden temperature changes. As the oven is preheating, its gas burner or heating element will be working at full power.

oven baking pyrex bowl lid clear china glass glassware
(Source: www.garboglass.com)

In an electric oven, a huge amount of radiant heat is generated. Therefore, if you put Pyrex glassware inside a cold oven and turn it on, the radiating heat will make some parts of the glassware hot as the oven continues to heat up.

If you preheat the oven before putting in the Pyrex glassware, the radiant heat will make some of its part hot. Most of these newer machines have preheating buttons to make it easier for you not to forget.

As long as you follow the Pyrex safety instructions, you won’t experience this accident. If Pyrex shatters or if you accidentally break it, pray that you are wearing shoes and oven mitts.

In other words, you should be ready for anything that would happen when you are working with Pyrex glassware, particularly if you place it in a running oven. Carefully pick up the broken pieces of glasses with a tong or something similar.

Collect the shards in a pan and then put them all in a suitable waste bag. After cleaning the oven, stove, or floor, inspect the rest of the room for stray glass shards.

custard cups glass pyrex clear oz
(Source: larrysbasement.com)

Don’t put a hot Pyrex dish directly on a cool or wet metal surface or a countertop. Put it first on a dry potholder or cloth, a cooling rack, or a wooden trivet.

Don’t use Pyrex glassware on a stove top with an electric burner or an open flame, a barbecue grill, a toaster oven, or broiler. Never use Pyrex to heat foods in brown paper bags or wrappers.

Let Pyrex cool down at room temperature before placing it in the freezer or immersing it in water. This technique will prevent any sudden changes in temperature that may happen as the food releases fluids.

If you suddenly expose it from one extreme temperature to another, it could experience thermal shock and may shatter. Somewhere along the line, the Pyrex glass changed to no longer be resistant to thermal shock.

This type of glass made Pyrex kitchenware thermal shock resistant. In 1998, Corning sold its Pyrex brand to World Kitchen, LLC.

pyrex dish glass
(Source: www.pupsikstudio.com)

The company’s Use & Care guidelines state that Pyrex glassware can be used for warming, cooking, baking, and reheating food in preheated standard and convection ovens, including microwave ovens. If your Pyrex is in the freezer or fridge, allow it to come to room temperature before you put it in the oven.

In fact, there have been a few reports of Pyrex bakeware exploding in customers' ovens (yikes!). Pyrex is made of glass, which can experience thermal shock when it's exposed to sudden temperature swings.

ADVERTISEMENTHere's a fun fact, though: How likely your dish is to break all depends on when it was produced. If your Pyrex was manufactured before 1998, it was made with borosilicate glass, which is specifically designed to be thermal shock-resistant.

Avoid rapidly moving your Pyrex from hot to cold temperatures (like taking it directly out of the oven and putting it in the refrigerator) or placing it on your stove top. Pyrex also recommends preheating your oven before placing the glass dish inside so that it isn't exposed to a big change in temperature and to always let Pyrex come to room temperature before placing it in an oven, freezer, or refrigerator.

“I can slow cook meats, make soup, and even bake bread in it. For example, a Pyrex label says “Avoid extreme temperature changes.” But, it also said the bakeware is oven and freezer safe.

cup pyrex measuring crate barrel crateandbarrel
(Source: www.crateandbarrel.ca)

Plates in Pyrex glass can be used to heat and reheat food, in the oven or microwave oven, if you take a few precautions: Avoid sudden changes in the temperature of the glass. Ensure to always preheat the oven before you put your glassware inside.

Shattering is relatively rare, but it can happen when glassware is exposed to sudden temperature changes (known as thermal shock), extremely high heat (over 425 degrees), or direct heat. If the stress is too extreme, the bowl’s structure will fail, causing a spectacular shattering effect.

Don’t set a hot glass dish directly on the metal eyes of your stove. Ensure all cloths or oven mitts used to handle the pan are dry before using them.

I spoke with a Corning ware representative just to confirm that, and they said there isn’t really a maximum temperature in terms of home use. The heat source in a regular oven is stationary, usually radiating from a heating element in the bottom of the appliance, while in a convection oven a fan circulates the hot air all around the place.

Pyrex is basically a type of glass, and also hasn’t ever been called out for any potential health problems. If you’re planning to do some baking, then you’ve probably wondered if you can put glass or Pyrex in the oven.

snapware containers pyrex lids storage glasslock food keeper glassware pc lid square
(Source: www.ebay.com)

This type of glass is specially made to increase strength and heat resistance making it a great option for bakeware. However, unlike other types of glass where taking a little chip out of it won’t ruin the dish, with tempered glass, if this happens, the whole dish may break into those tiny chunks.

This types of glass are the most resistant to thermal shock, meaning it can have a huge change in temperature without breaking. For example, for some types of glass, if you take it out of the oven and immediately put cold water on the dish, it will shatter.

This type of glass is also very resistant to corrosion making it perfect for backyard experiments. From soda bottles to window panes to glass bakeware.

Soda-lime glass gained popularity because it can be reheated and reformed tons of times which makes recycling it and forming it into things super easy. This type of glass is durable and can sustain very high temperatures.

Ceramic-Glass Some people may consider ceramic to be a different category, but guess what, it’s still a type of glass. Ceramics can be exposed to higher temperatures than other kinds of glass and it’s pretty much immune to thermal shock.

pyrex ultimate round
(Source: moorewilsons.co.nz)

Pyrex is usually made of tempered glass which gives it strength and heat resistance. Even their small food storage containers are oven safe which means your leftovers can be warmed right in the oven.

Pyrex is well known for its glass storage container and is a great option for food prepping or, if you’re like me, cooking a big meal and saving the leftovers. One thing to keep in mind if you use Pyrex is that it’s important to check your bakeware regularly for any chips or scratches as this can compromise the integrity of the glass.

The lids that are included with the dishes are made out of different material and are really only meant to be used as a cover after your food has been cooked. This is thermal shock at it’s finest and could cause your bakeware to break in a very glorious fashion.

Because Anchor Hocking dishes are made of tempered glass, also make sure you inspect your pieces for any cracks or damage before using them. With tempered glass, the smallest crack can cause the whole piece to shatter if exposed to heat or cold.

Next up, we’ll briefly cover 3 key ways you can protect your glass bakeware. Thermal shock occurs when there is a rapid change in the temperature of an object.

pyrex rectangular glass
(Source: www.thekitchenwhisk.ie)

Such as taking a dish straight from the freezer and putting it into a hot oven. This shock can cause cracks, chips, and in some cases, complete breakage of your glass dish.

These things can also occur if you expose your glassware to a direct heat source such as a broiler or a stove top. To avoid thermal shock from happening, make sure your dish is around room temperature before placing it in the oven or into the fridge or sink.

In other words, don’t use things that will cause scratches or damage to your glassware such as SOS pads or something similar. The best way to get baked-on food out of bakeware is to soak the dish in hot soapy water for a couple of hours and then wash it normally.

This depends on the brand and the type of damage, but hey, it’s worth checking! In general, you shouldn’t put a regular drinking glass in the oven.

Or the stamp will only say what they can’t do, such as “no stove top”, “no broiler”, etc… If your glass doesn’t have a label, you can check the manufacturer’s website for more information.

ceramic dish pyrex casserole supreme morrisons ocado 5l leave
(Source: www.ocado.com)

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1 delishably.com - https://delishably.com/meat-dishes/How-to-cook-a-ham-Baked-Ham-in-Coke
2 www.copymethat.com - https://www.copymethat.com/r/qFaYkdm/jamie-olivers-ham-joint-gammon-in-coke-s/
3 www.jamieoliver.com - https://www.jamieoliver.com/features/how-to-make-roast-ham/
4 drizzleanddip.com - https://drizzleanddip.com/2010/11/22/slow-roasted-pork-belly-with-ginger-beer-jamie-oliver/