You can easily freeze food without plastic bags by using reusable silicone bags, glass mason jars, stainless steel containers, or parchment paper. These options prevent freezer burn and reduce waste.
Alternatives to freezer bags made of plastic
Wax paper or reusable wax wraps are particularly suitable for bread, cheese or sausages. They provide a protective envelope around the food and prevent freezer burn. Larger versions of wax wraps can be used as a cover for bowls or casserole dishes.
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For the best plastic-free freezing, choose tempered borosilicate glass or high-quality food-grade silicone. Tempered glass won't shatter during temperature shifts and is safe for microwave-to-freezer meals, while silicone bags provide flexible, space-saving storage perfect for pre-proportioned soups, sauces, and solid foods.
The safest materials to freeze food in are glass, food-grade silicone, and stainless steel. These options are non-toxic, free of harmful chemicals (like BPA, phthalates, and microplastics), and do not leach into food during the freezing or thawing process.
--- 2️⃣ Canning in Glass Jars In summer and fall, Amish families can food in glass jars: Vegetables (beans, corn, tomatoes) Fruits (peaches, apples, berries) Soups and stews They boil the jars to kill bacteria and seal them airtight. Once sealed, the food can last 1 to 3 years on shelves.
The safest, plastic-free ways to freeze food use glass, stainless steel, parchment paper, or silicone. These non-toxic, non-porous alternatives prevent chemicals from leaching into your meals, eliminate single-use waste, and keep food fresh while effectively defending against freezer burn.
Putting a penny (or any coin) in the freezer is an easy trick used to check if your freezer lost power while you were away, and whether your frozen food is still safe to eat.
No, the glass body of Pyrex does not contain or leach microplastics. However, the standard storage lids are made of plastic, meaning they can degrade and release microparticles over time.
Silicone is generally considered safer and more inert than conventional plastic. It is free from BPA, phthalates, and PVC, and won't shed microplastics over time. However, it is not completely invulnerable; it can release trace compounds at high heats.
👉 A peer-reviewed study found that polypropylene bags like Ziploc can release thousands of microplastics and millions of nanoplastics per square centimeter (Especially when frozen or reheated in the microwave)!
To replace Ziploc bags, the best overall alternative is reusable silicone bags (like Stasher). They are made of food-grade platinum silicone, feature an airtight pinch-lock seal, and are safe for the microwave, oven, freezer, and dishwasher.
A quality reusable silicone bag might run several times the price of a pack of Ziploc bags. But because they last so long, using silicone bags leads to long term savings. Ziploc bags are cheap initially but add up if you frequently buy replacements. Plus, the environmental costs aren't reflected in the price.
The best alternatives depend on your specific need: reusable silicone bags (like Stasher) are ideal for food storage, organic cotton tote bags are perfect for groceries, and compostable plant-based liners replace trash bags.
The healthiest way to freeze food is to use non-toxic, airtight containers like glass, stainless steel, or high-quality silicone to prevent freezer burn and chemical leaching. Cool food completely before freezing, pack it tightly to remove air, and use glass Mason jars for liquids to ensure a safe, sustainable, and nutrient-dense way to preserve meals.
The healthiest containers for storing food are glass, stainless steel, and ceramic. These materials are inert, meaning they won't leach harmful chemicals like BPA, phthalates, or PFAS into your meals—even when exposed to heat.
Under normal conditions, high-quality, food-grade silicone does not release or fragment into microplastics like conventional plastics do. Because its molecular structure is based on a silica-oxygen bond rather than carbon, it remains highly durable, stable, and heat-resistant.
The European Union's amendments to its Registration, Evaluation, Authorization and Restriction of Chemicals regulation (REACH) banning certain silicones – D4, D5 and D6 – mark another significant challenge for manufacturers, particularly in the personal care sector.
Modern Pyrex isn’t as durable because the manufacturer switched the material from highly heat-resistant borosilicate glass to soda-lime glass. This change makes the bakeware much more susceptible to shattering from "thermal shock" (e.g., placing a hot dish on a cold counter).
The best non-plastic food storage containers are typically made from tempered glass, stainless steel, or ceramic. These materials are completely free of BPA, phthalates, and PFAS. They won't leach chemicals, stain from acidic foods, or hold onto lingering odors.
Yes, beverages in glass containers often contain microplastics. Surprisingly, a study by France's food safety agency found that bottled drinks in glass containers had 5 to 50 times more microplastics than those in plastic or metal.
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You may have heard of it: Freeze a cup of water solid, set a coin on top of the ice, and put it back in the freezer. The idea is that if your power goes out while you're away and the freezer warms enough for the ice to melt, the coin will drop down into the cup.