Yes, you can freeze, refrigerate, microwave, and bake in Pyrex® glass containers, making them ideal for meal prep and storing leftovers. Pyrex borosilicate glass is designed to withstand temperatures from -40 ∘ 𝐶 − 4 0 ∘ 𝐶 to +300 ∘ 𝐶 + 3 0 0 ∘ 𝐶 and is resistant to thermal shock, allowing for a safe transition from the freezer to a hot oven.
Can Pyrex Go In The Freezer? Yes, it can. Like I have mentioned above, you cam meal prep your meals and then load them into your Pyrex and freeze them. Its just important that you allow your freezer meals to fully cool BEFORE you place the plastic lid on top. Otherwise, you will end up with a lot of condensation.
The advantages of Pyrex® borosilicate glass: Withstands extreme temperatures from -40°C to +350°C. Resistant to thermal shock up to 240°C (EN 1183): can go from the freezer at - 20°C to the oven at 220°C. Healthy BPA-free and hygienic material that does not retain stains or odors.
Registered More Card customers only. Customers can collect 1 stamp for every £10 they spend in store. Once customer has enough stamps to qualify, they can be used to either redeem Pyrex® for free, or part redeem and pay a remaining balance. Campaign live to collect stamps between 19th February - 8th June 2025.
Only if it says freezer-safe (usually tempered glass). Otherwise, it can crack and that's no fun. Also make sure to remember that liquids expand, and glass has no wiggle room, so if you're freezing in a freezer-safe glass container, you still want to leave a little room at the top.
Strategies for freezing food in glass dishes like Pyrex pans
What types of Pyrex are freezer-safe?
Pyrex® borosilicate glass is recognized for its robustness and resistance to thermal shock up to 240°C. This material allows a safe transition from freezer to oven, or reverse, ensuring maximum versatility. Its ease of cleaning, durability and reliability make it a quality choice for everyday use.
Glass is particularly vulnerable to thermal shock—it's why glass windows often break or blow out when there is a fire inside of a building. Glass containers can also crack if they are too full of liquid when they go into the freezer.
The lawsuit accused Pyrex manufacturer Corelle Brands LLC of switching the type of glass used to make its products. According to the complaint, Pyrex glassware was originally made of borosilicate glass, which is more heat tolerant.
Patterned Pyrex—such as the 1956 Pink Daisy or the 1983 Colonial Mist colorways—tend to be valuable as a collector's item. Other popular patterns include the 1957 Butterprint, which features an Amish couple and their crops, and has been valued at a few hundred dollars.
You can get free stuff from Tesco by using Clubcard receipt coupons for full-size items, finding "free samples" in the app for online orders over £50, redeeming points for vouchers, and checking for brand promotions via the Tesco app or Clubcard statements for tailored offers, using your Clubcard at all times for rewards.
Yes. I do this all the time with lasagna, stuffed shells, enchiladas, etc. Just assemble, don't bake, press plastic wrap to the top so there is no air then cover the dish. I do this in my Pyrex Bakewell all the time!
How can I tell if my glass container is freezer safe?
The safest glassware for both microwave and freezer use is made from borosilicate or tempered glass. Here's why: Borosilicate glass expands less when heated or cooled, making it resistant to cracking. Tempered glass is strengthened to handle sudden temperature shifts, though not as heat-resistant as borosilicate.
Pyrex dishes can safely be used in the freezer, but avoid extreme temperature changes to prevent shattering. Allow hot Pyrex to cool before freezing and defrost slowly before cooking. Avoid placing cold Pyrex in a hot oven or on a hot surface to prevent cracking.
Which glassware item may not be stored in a freezer?
Thin or decorative glassware (e.g., wine glasses, crystal, or non-tempered glass) should not be stored in the freezer. These types of glass are not designed to withstand extreme temperatures and may crack or shatter.
The Lucky In Love design is printed on the one-quart Round Casserole (473) and remains one of the most elusive Pyrex designs ever created by Corning Glass Works. Released in 1959, Lucky In Love is most likely a limited release product or even a test piece.
Pyrex made in recently will have a stamp on the bottom marketing them microwave-safe, vintage Pyrex won't have that. But in general, Pyrex's whole claim to fame is how heat-resistant it is. We know it's not dangerous to put Pyrex in the oven; Pyrex is suited for the heat of the microwave, too.
NO - Do not use Pyrex® glassware to microwave popcorn or heat foods in browning wrappers. Microwavable popcorn bags and browning wrappers are specially designed to concentrate heat in targeted areas and may damage the glass.
Lowercase "pyrex" is produced by other cookware companies that don't use the heat-resistant borosilicate glass the original company does (more on that below). Since, pyrex (emphasis on the lowercase letters) is mostly made from soda-lime glass, it is definitely not recommended for use in the oven or microwave.
1. Pyrex and drinkware. Reason they can't be recycled: Pyrex has been specially treated to withstand high temperatures, and drinkware is toughened, so they're not suitable for recycling. They also can't be dropped in bottle banks for the same reason.
Pyrex® borosilicate glass is renowned for its strength and resistance to thermal shock up to 240°C. This material allows for a safe transition from freezer to oven, or vice versa, ensuring maximum versatility.
