Fortunately, most Tupperware can be frozen. Cheaper plastic containers may crack over time but they will still be safe to freeze. To be safe, look for the snowflake symbol on the base of the Tupperware which denotes it is safe for the freezer.
If your Tupperware container has a snowflake symbol on it, don't worry about freezer damage—that symbol means it's freezer safe. If you don't see the snowflake symbol, avoid putting your new containers in the freezer.
Rigid containers and flexible bags or wrapping are two general types of packaging materials that are safe for freezing. Rigid containers made of plastic or glass are suitable for all packs and are especially good for liquid packs.
Ziploc® Containers with lids feature easy-to-use, leakproof Smart Snap technology. They are BPA free and safe for use in the microwave, dishwasher, freezer and fridge (when used as directed). Use them to store food, organize supplies, or while on the go.
We'd also avoid plastic takeout containers, which can become brittle in the freezer and then crack or shatter easily. You'll never be able to get all of the air out of rigid containers, though tight-sealing lids can help.
Anything liquid in a sealed glass container or can could explode. It's no secret that liquids expand and contrast when placed in the freezer. For this reason, Murphy recommends avoiding placing glass containers full of liquids in the freezer. The same logic applies to cans and even plastic storage containers.
Rubbermaid TakeAlongs Food Storage Containers
Made of BPA-free plastic, this set comes equipped with ridged lids that help you stack and store food without taking up too much space. They're lightweight and safe to use in the freezer, refrigerator, and microwave (without the lids).
Is your plastic container dotted with a snowflake symbol or two? This means it's safe to stow your container in the freezer—a godsend when you've made a delicious pot of stew and want to keep it around for later consumption.
Plastics are highly susceptible to breaking when they become too cold. When a plastic reaches freezing temperatures, changes occur on a molecular level that make the material more brittle. Plasticizers can reduce this tendency by increasing a plastic material's flexibility and elasticity.
Tupperware also chalked up lower sales and operating margins as primary reasons for the decline. In its hunt for additional funding, the company said it is reviewing various aspects of the business from its real estate portfolio to cash management and possible layoffs.
If your plastic containers are at the point of no return—say, if they're cracked, you can't handle the stench, or you're missing pieces—then it may be time to say goodbye. DeLeonibus says you can easily recycle most plastics according to the recycling symbol on the bottom of the container.
Do not store sauces or any food products in glass, as they could shatter if the food inside expands as it freezes. Instead, use Tupperware, plastic containers or freezer bags. Rather than freeze in giant batches, consider how you plan to use them upon thawing, and portioning your sauces accordingly.
But many plastics exhibit their transition at everyday temperatures and can be “frozen” into brittleness.
At cold temperatures, plastics tend to be harder, stiffer and more brittle. At elevated temperatures, plastics tend to be softer and more ductile. Read an article to learn more. Plastics tend to have reduced chemical resistance at elevated temperatures.
Extreme cold can make the plastics brittle and cause them to crack during temperature fluctuations. For example, if it's cold one day and warm the next, the plastics could easily warp and crack. The internal components could also crack and cause permanent damage to the items.
Plastic containers can release chemicals when frozen just as they can when heated. For better food safety, opt for glass. The right glass containers are freezer and refrigerator safe, meaning they won't release any harsh chemicals or break if frozen.
All bags made by Ziploc are freezer safe.
If you're looking for a convenient and healthy way to preserve produce without the time commitment of traditional canning, you may be asking yourself: Can you freeze Mason jars? The short answer is, yes you can! At-a-glance chart for freezer safe Mason jars.
Whether you have mixing bowls, serving pieces, bakeware, storage containers, or other types of Pyrex (which also includes CorningWare and Corelle), you've probably wondered whether it is safe to put in the freezer. The short answer is yes—but there are a few rules you should follow.
Polystyrene is considered safe for food use when in a solid state. However, heating can cause chemicals to leach from the foam and into the food.
Food grade materials, such as aluminum foil, heavy freezer-weight plastic bags, heavy plastic wrap and parchment or freezer paper are excellent choices. It is safe to freeze meat or poultry directly in its supermarket wrapping, but this type of wrap is thin and lets air in.
The short answer is no, the flavor and texture will be affected when food is refrozen. Cells within the food expand and often burst when food is frozen. They often become mushy and less flavorful.