Plastic containers are indispensable in our everyday lives. From holding leftovers to organizing the pantry, these versatile storage solutions are a go-to for almost every household. However, not all items are suitable for storage in plastic containers, and improper use can lead to undesirable consequences.
While plastic is cheap, durable, and lightweight, it can be unsuitable for certain foods, chemicals, and other items. If you want to ensure that your food stays fresh, your belongings stay intact, and you avoid health risks, it’s crucial to understand what should and shouldn’t be stored in plastic containers.
Let’s dive into the nine things you should never store in plastic containers and why.
Hot Foods and Liquids
One of the most common mistakes people make is using plastic containers for storing hot foods or liquids. While plastic containers are convenient for storing leftovers, they are not ideal for hot substances. When plastic is exposed to high temperatures, it can start to warp and lose its shape.
But that’s not the only concern; heat can also cause harmful chemicals, such as Bisphenol A (BPA), to leach from the plastic into the food. BPA is a chemical used in some plastics to make them hard and durable, but it has been linked to various health issues, including hormonal imbalances and increased risks of cancer.
Even BPA-free plastics can release potentially harmful substances when heated. When storing hot food, it’s always a better choice to use glass or ceramic containers, as they are more heat-resistant and won’t leach chemicals into your food. This simple change will ensure that your meals are both safer and fresher.
Raw Meat and Fish

Storing raw meat and fish in plastic containers is a risky practice that can lead to contamination. Raw meat, fish, and poultry are full of bacteria, and improper storage can make them breeding grounds for pathogens. While plastic containers may seem convenient, they don’t always provide an airtight seal, which can promote the growth of harmful bacteria.
Additionally, plastic containers can absorb juices from raw meat, potentially leading to cross-contamination with other foods. The last thing you want is to store a cooked meal in the same container without realizing that some of the raw meat’s juices have seeped into it.
To avoid this, use freezer bags or vacuum-sealed packaging specifically designed for raw meats. These materials ensure better protection against contamination and spoilage. If you need to store raw meat in the fridge for a short time, it’s better to use glass containers that provide a secure, airtight seal.
Fatty Foods
Fatty foods such as oils, fatty cuts of meat, and cheeses can cause plastic containers to degrade over time. The oils in fatty foods can seep into the plastic, making the container greasy and difficult to clean. Even worse, plastic can absorb these oils, so the container retains the food’s smell long after it has been washed. This can also affect the flavor of future foods stored in the same container.
Spices and Seasonings

Spices and seasonings are essential ingredients that help transform meals, but they can lose their flavor and potency quickly if not stored properly. Plastic containers are not the best option for spices because they can allow moisture and air to seep in. This exposure causes spices to lose their freshness more quickly, resulting in diminished flavor.
Medicine and Supplements
Storing medicine and supplements in plastic containers may seem convenient, but it’s a practice you should avoid. Chemical reactions between plastic and certain medications can degrade their effectiveness. Over time, the plastic may even leach chemicals into the medicine or supplement, altering its properties or reducing its potency.
Food with Strong Odors

Certain foods, such as onions, garlic, and strong cheeses, have potent odors that can linger in plastic containers long after they’ve been stored. Over time, the plastic can absorb these odors, which can transfer to other foods stored in the same container, affecting the overall taste and smell. Even if you clean the containers thoroughly, some of the odors may still remain.
Canned Goods
After opening a can of food, it’s common practice to transfer the contents into a plastic container for storage. However, this is not the best way to keep food fresh. The acids in canned foods can react with plastic, causing a metallic taste or affecting the food’s quality.
Plastic is more porous than glass, allowing oxygen and moisture to come into contact with the food, promoting spoilage. For optimal food preservation, it’s better to store canned goods in glass containers.
Glass is non-reactive and will not affect the taste or quality of the food. It also provides a better airtight seal, ensuring that your leftovers stay fresher for longer.
Dairy Products

Dairy products like milk, yogurt, and cheese are delicate and require proper storage to maintain their freshness and prevent spoilage. While plastic containers are often used for storing dairy, they are not always the best choice. Plastic can trap moisture, which encourages bacterial growth and can accelerate spoilage.
Cleaning Products
Plastic containers may seem like a practical solution for storing cleaning products, but it’s important to remember that certain chemicals can react with plastic over time. Harsh chemicals like bleach, ammonia, and various disinfectants can break down the plastic, leading to leaks or container degradation.
Moreover, the chemicals in cleaning products can sometimes leach into the plastic, contaminating the contents and reducing the product’s effectiveness. To avoid these risks, always store cleaning products in their original packaging.
If you need to transfer them, use containers made of materials designed to handle chemicals, such as heavy-duty plastic or metal. This ensures that your cleaning supplies remain safe and effective.
Conclusion
While plastic containers are convenient and versatile, they aren’t always the best choice for storing certain items. For better food preservation, safety, and cleanliness, consider switching to glass or stainless-steel containers for hot foods, raw meats, fatty foods, spices, dairy, medicine, and cleaning supplies.
By making the switch, you can keep your food fresh, avoid health risks, and ensure that your storage solutions work for you, not against you.
Read the original Crafting Your Home.
