Everything Need to Know Before Putting Glass Inside the Oven

Glassware is one of the most commonly used household items since glass is inexpensive, always available, and transparent, allowing you to see the condition of the food inside. Furthermore, using glass serving dishes elevates and refines your table settings.

If you use glassware, you may serve the meal straight from the oven to the table without having to transfer it to another serving platter. Isn’t that practical? However, are all glass containers oven-safe? How do you know which ones are okay to put in the oven and which ones are not? This post will teach you everything you need to know about putting glass inside the oven.

Knowing if your glassware is oven-safe

can you put a glass bowl in the oven

Yes, it is safe to put a glass inside the oven BUT it depends on the type of glass. Not all glass is designed to resist high temperatures. To avoid damaging your glassware, you must first ensure that it is oven-safe before placing it in a preheated oven. The following are the 4 types of glass that are safe to put inside the oven.

Pyrex glass

Pyrex is a form of glass that is made from soda lime. Because of its low thermal expansion, this glass is ideal for cooking and baking, as well as storing food in the refrigerator and freezer. In the early 1900s, Pyrex glass was a game-changing innovation that altered the kitchen and cooking environment in many houses.

It is safe to put the glass in the oven if it is Pyrex. Don’t be mistaken, we’re not talking about the brand. Pyrex glass is also used in laboratories because it can contain chemicals and caustic compounds safely without generating chemical reactions. Pyrex is a heat-resistant material that can withstand temperatures of up to 450 degrees Fahrenheit (230 degrees Celsius).

Borosilicate Glass

Aside from Pyrex glass, another type of oven-safe glass is borosilicate. Boron trioxide and silica are utilized to create this low conductivity glass. Temperature extremes will not fracture, break, or damage borosilicate glass.

If you’re looking for glass kitchenware for cooking or baking, make sure the product is made of borosilicate glass by reading the labels carefully. Borosilicate glass, like Pyrex, has low coefficients of thermal expansion, yet it can withstand higher temperatures than Pyrex can.

It doesn’t break in an oven heated to over 450 degrees Fahrenheit. Additionally, be its higher thermal shock resistance, borosilicate glassware can be washed immediately after cooking or baking without waiting for it to cool down. Frozen food using this type of glass is reheated in the oven without fear of the glass cracking or breaking.

is all glass oven safe

Tempered glass

Tempered glass is another type of glass that may be used in an oven without fear of breaking. Because it has been tempered five times more than normal glass, this glass is more durable than conventional glass.

Glass can be tempered using a chemical process or thermal process. Food containers and kitchenware, they are tempered through a thermal process.  Additionally, tempered glass cookware is more resistant to fracture in the event of a fall, making it ideal for use in the kitchen. When it comes to tempered glass, it is less likely to break than conventional glassware by up to 65% to 70%.

Tempered glass can survive falling three or four times more than a standard drinking glass before breaking. And when it does break, the broken pieces will be little, rounded chunks rather than sharp, jagged pieces. Tempered glass is also safer because it is easier to dispose of.

Metal-free component glasses

When baking or cooking in a conventional or microwave oven, you’ll need this particular brand of glass. Metal cookware has a higher thermal expansion coefficient than glass cookware or bakeware. It is more likely to break or crack if your glassware incorporates metallic components due to the thermal expansion variations between glass and metal.

What to look for in buying oven-safe glass

glass bowl in oven

We’ve already established that some glass containers can be used in the oven while others cannot. We now understand the varieties of glassware that can tolerate oven heat. Now the question is, how will you check if it is safe or not?  What should you check for when purchasing oven-safe glass?

Check the bottom of the container

Baking in glass pans can be difficult because not all of them are oven-safe. Before putting a glass dish in the oven, check the oven’s safety and temperature ranges. To see if this item is oven-safe, look for the “oven-safe” symbol on the bottom of the container.

Take a look at the user’s guide

If the containers aren’t clearly labeled, it doesn’t imply they can’t be used in the kitchen. For more information, check the product’s box or the owner’s manual. Often, these will tell you if the product is oven safe, what material it is made of, and what temperature range it can withstand.

If you can’t locate the oven-safe and temperature requirements on the box, you may always verify the product contents. In the oven, borosilicate or tempered glass containers are safe to use. Non-tempered glass, on the other hand, is not oven-safe.

Search the internet

If you received your dish from a family member, you may not have the original instruction manual or packaging. If you know the brand and type of glassware, you can typically find out if it is oven safe by conducting a quick internet search. Amazon is a fantastic place to start because its product descriptions are typically quite detailed.

Preventing glass from breaking in the oven

can glass go in the oven

There is no need to worry about breaking your glass if precautions are done. Take the following precautions into consideration when using glass in the oven.

Don’t Make Sudden Changes in the Temperature

Thermal shock is a danger to most glassware. Keep your food at room temperature before placing it in the oven, rather than thawing it in the freezer. Even though you may be able to achieve this without much difficulty, your glass is at risk of breaking.

Exact same principles apply when you remove a glass from a microwave or oven. Due to thermal shock, avoid placing the hot glass on a cool surface. Hot pads can also be used as a substitute for a cold surface.

Use tempered glass instead of regular glass

It is important to note that not all glass can be used in the oven unless it is marked “oven-safe” or tampered with. Keep in mind that oven-safe glassware often comes with temperature limits, so be sure to adhere to them. Smaller dishes and glasses can’t handle high temperatures, so avoid using them in the oven. Oven-safe labels aren’t required for glass lids unless they’re explicitly stated.

Avoid Overheating

Glassware, as previously stated, has a maximum temperature that it can sustain. This is why it’s important to follow the manufacturer’s guidelines when using oven-safe glass, as the safe temperature range might be between 350 and 500 degrees Fahrenheit. You’ll extend the life of your glass if you don’t go above the limit.

Check carefully before buying

For the most part, we don’t check for any defaults before we use culinary products. If you’re going to use glass cookware, ensure sure it’s free of cracks or scratches before you start cooking. When subjected to sudden temperature changes, cracks and scratches highlight the areas that are most vulnerable.

Put the water at the bottom when baking dry goods

The most common use for this strategy is baked dishes. When baking dry foods, consider adding a small amount of liquid to the bottom of the pot. Putting some water in the bottom of the pan can assist the glass warm up while it cooks due to the heat of the water.

How to use an oven-safe glass container

can u put glass in the oven

Step 1

Before using your glass bakeware, be sure to read all of the instructions and safety tips that come with it. To avoid damaging the glass, make sure you follow the provided directions exactly.

Step 2

Glass bakeware that is oven- and microwave-safe is a specialized item. Use glass bakeware with caution to avoid a mess and/or endangering yourself or others. This bakeware should not be used for broiling or cooking on the stovetop. Avoid putting glass bakeware on a grill, toaster oven, or barbecue.

Step 3

Make sure the oven is preheated before using any glassware. When cooking in an oven, wait until the temperature reaches at least 350 degrees Fahrenheit before putting food in. If this is done, cooking times will be more accurate.

Step 4

Thermal stress should be avoided at all costs while using glass bakeware. Glass bakeware can shatter or chip if subjected to a quick and significant temperature change. Do not put cold water into a hot pan and you should not wash hot glassware in the dishwasher.

Step 5

Use only glass bakeware that is not broken, chipped, scratched, or shattered. A small crack or chip in your glass bakeware may cause it to expand and break. You remove any cracked glassware in your kitchen and do not put bakeware that was dropped hard because those are more susceptible to breaking.


When putting glass in an oven, check sure it can withstand high temperatures without cracking. Furthermore, the glassware must be compatible with the oven, which means it must not interfere with the oven’s operation or cause any damage.

Knowing these facts will allow you to make an informed selection about the type of glassware to use for cooking and baking. Using the wrong type of glass can result in breakage, thus it’s essential to use the right one for the right job.

Leave a Comment