Can You Freeze Pyrex Glass Food Storage Containers?
By Pyrex Home | Published: 2026-10-17
Category: Product Reviews
Learn the safe way to freeze Pyrex glass food storage containers, including temperature limits, lid tips, and how to avoid thermal shock.
Quick Answer
Yes, you can freeze Pyrex glass food storage containers safely. They are designed to handle cold temperatures, but you need to avoid sudden temperature changes and leave headroom for food expansion.
Understanding Thermal Shock
Pyrex glass can withstand both freezing and oven heat, but the real risk is thermal shock—a sudden temperature change that can cause the glass to crack or shatter. For example, moving a container straight from the freezer into a hot oven or placing hot glass under cold running water can stress the material. To stay safe, always let frozen Pyrex containers warm up for a few minutes at room temperature before reheating, and never add hot liquid to a cold container.
How to Freeze in Pyrex Glass Containers
Start with a clean, dry container. Leave at least an inch of headspace at the top because liquids expand when frozen. This is especially important for soups, sauces, and other high-moisture foods. If you plan to stack containers in the freezer, make sure they are completely frozen first to avoid sticking. When you are ready to use the food, thaw it in the refrigerator overnight rather than at room temperature for best texture and safety.
Lid Considerations for Freezing
Glass lids are fine for freezing, but plastic lids can become brittle in very low temperatures. If you are using a container with a plastic lid, consider freezing without the lid first, then adding it once the food is solid. This also prevents pressure buildup from expanding food. For everyday freezer storage, Pyrex containers with glass lids, like the Lightweight Glass Canister Sets, offer a clear view of contents and a secure seal.
Quick Freezing Checklist
- Can all Pyrex glass go in the freezer?
- Yes, Pyrex glass is freezer-safe. However, avoid thermal shock by not moving it directly from freezer to oven or hot water. Always let frozen glass warm up before reheating.
- Do I need to leave headspace?
- Yes, leave at least an inch of space for liquids to expand. This prevents cracking and lid pop-off. Fill containers only 3/4 full for freezer use.
- What about plastic lids?
- Plastic lids can become brittle in the freezer. Freeze without the lid, then add it once the food is solid. Use glass lids for long-term freezer storage.
Pyrex Glass Storage Products for Freezing
- Pyrex® 4-Piece Lightweight Glass Canister Set: The Pyrex® 4-Piece Lightweight Glass Canister Set offers durable glass canisters in four sizes, each with a secure glass lid. Ideal for storing dry foods like pasta, grains, or snacks. These canisters are perfect for freezing dry ingredients like grains or snacks, and the glass lids won't become brittle in the freezer.
- Pyrex® 6-Piece Lightweight Glass Canister Set: The Pyrex® 6-Piece Lightweight Glass Canister Set includes durable glass canisters in five convenient sizes, each fitted with a secure glass lid—ideal for storing dry foods like pasta, rice, cereal, or baking staples. With five sizes, you can portion out and freeze baking staples or cereal while keeping everything visible and organized.
- Pyrex® Simply Store® Tinted 7-cup Round Storage with Blue Plastic Lid: The Pyrex® Simply Store® Tinted 7-cup Round Storage Container features a fresh tint and a blue plastic lid, making it a practical and attractive addition to your food storage collection. The 7-cup capacity is great for freezing leftovers or meal prep portions, but remember to use the plastic lid carefully in the freezer—freeze without it first, then seal.
