Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do. (2024)

A party at home will usually leave you with enough leftovers to last a few days. Chances are you will store them in a variety of plastic boxes and stack them in your fridge to be used over the next few meals. Why just your fridge, we take plastic lunch boxes to work, even give plastic water-bottles to our little ones to carry to school. Ever paid attention to the quality of these containers and bottles or how they are manufactured? Just have a look at the bottom of the box, somewhere there if you can see the numbers #3 or #7, then it might release chemicals like BPA (bisphenol A) or PVC (phthalates) which has an adverse effect to our body and hormone levels once in the blood stream.

Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do. (1)

Plastic boxes and stack them in your fridge to be used over the next few meals.

It is not like every plastic container releases harmful chemicals so no need to panic, just yet. Good quality containers have a #2, #4 and #5 printed at the bottom, these are considered safe for food storage. But since it’s tough to guarantee the quality of plasticware purchased, some people stay away from them completely, opting for glass or steel containers instead. “I definitely endorse steel and glass containers. Children can easily take steel boxes to school! Steel water bottles are also easily available. If the plastic containers are BPA free then they can be used. Thin plastic mineral water bottles should not be reused or kept in the sun in cars.” says Shalini Manglani, Nutrition and Weight Management Expert, Bangalore.

Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do. (2)

Plastic ContainerThere are certain things to keep in mind while using plastic containers even if it is of high quality.1. Never reheat food in plastic container

Reheating or cooking food in a plastic container (even if it is marked microwave safe), is not safe as the plastic upon heating release a certain kind of chemical which will further leach into the food changing it’s genetic components.
According to Dr. Anju Sood, “It is not advisable to store hot or cooked food in a plastic container, but it is safe to store cool and dry food and it also depends upon the quality of the plastic used. There might be implications in place where temperature variation is common. And definitely it is not at all safe to take the substance (plastic container) and placing it in the microwave as it has genetic implications, can change the genetic make-up of the food, which could lead to some serious ailments in the future, even cancer.2. Keep it away from hot waterWashing anything with hot water gives a germ free and stain free finish, but washing plastic container with hot water or storing hot water in plastic bottle is not a safe idea. Similar to reaction of heating the plastic container mentioned above, hot water also causes the chemical release, which can make the water in the bottle or food contained in plastic container harmful to some extent.
Now, we don’t want you confused about how to use your plastic containers going forward. Don’t worry, there are ways in which you can continue to use your older plastic boxes without any of the side-effects. For example, you could wrap up the food in an aluminum foil sheet before storing it in the plastic container, so as to avoid the contact between chemicals and food. Use these containers to store dry snacks or open packets of chips and namkeens.

Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do. (3)

Storing hot water in plastic bottle is not a safe idea.According to Bangalore based nutritionist, Shalini Manglani, “Steel and glass jars/containers are for grain, provisions and storing food in fridge. Ceramic pots can be used for pickles, we have used steel and ceramic in the past years. Mud filters (Matkas) can be used instead of plastic water filters if the quantity of water is huge. ”

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Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do. (2024)

FAQs

Is Storing Food In Plastic Containers Safe? 2 Things You Should Never Do.? ›

Keeping hot or freshly cooked items directly in plastic containers should be avoided. High temperatures will allow the plastics to release certain chemicals into the food. Once the foods are cool, they can be stored in plastic containers.

Is storing food in plastic containers safe? ›

Which Plastics Are Safest? According to National Geographic's The Green Guide, plastics #2, #4 and #5 are the safest for repeatedly storing your food. If you reuse items made from plastics #1, #3, #6 and #7 (some Tupperware products are made from #7), you run the risk of having toxic chemicals leach into the contents.

What should not be stored in plastic? ›

Important documents, valuables, and delicate items such as photos and artwork are all at risk of being damaged when stored in plastic containers. If any moisture gets into a plastic storage container before sealing it, it will be trapped. This can even lead to mold development if not allowed to dry out.

Why not to use plastic food containers? ›

Regardless of whether a plastic food container contains phthalates or BPA, it may not be entirely safe. Plastics break down over time, which means they can potentially release trace amounts of whatever chemicals they are made of into the food.

What is not an acceptable food storage container? ›

containers manufactured especially to hold food, like Ziploc bags or Tupperware containers. Do not use non-food grade containers like plastic or paper shopping bags or plastic trash bags to store food. Chemicals or dyes from these bags can leach into the food and contaminate it.

Do all plastic containers leach into food? ›

Even for containers labeled “safe” for the microwave and dishwasher, experts caution that heat and plastic don't mix well. Since heat helps to break the chemical bonds in plastic, it's possible that exposure to high temperatures increases the rate of chemical migration from the container into the food.

Does Tupperware leach microplastics into food? ›

Plastic Tupperware containers are convenient for storing leftovers and transporting food, but they can leach harmful chemicals and contribute to the microplastics crisis.

How long does it take for plastic to leach into food? ›

Experiments were designed to measure the ability of these chemicals to migrate from the container to samples of different foods and solvents. Analysis of the containers found parts-per-billion levels of PFAS that could migrate into both solvents and food matrices in as little as one week.

Do all plastic containers have microplastics? ›

People also are likely exposed to microplastics while storing food in plastic containers. One study found microplastics in all reusable plastic takeout containers from restaurants. Storage of hot food in takeout containers accelerates the rate of leaching of microplastics and other potentially hazardous substances.

Should I throw away my old Tupperware? ›

While there is no set timeframe for replacing plastic food containers, experts say they should be tossed out when they show visible wear, chips, cracks, or signs of stains and odors. In place of plastic containers, experts recommend opting for glass or stainless steel instead.

What is the healthiest container to store food in? ›

  • Frego. Frego Glass & Silicone Food Containers– All components are safe in a dishwasher, and will not release toxic chemicals or deteriorate with time. ...
  • Pyrex. ...
  • Pyrex. ...
  • Caraway. ...
  • Anyday. ...
  • Ukonserve. ...
  • Bklyn Bento. ...
  • RareCi.
Mar 4, 2023

Are Ziploc bags safe for food storage? ›

Ziploc® brand bags made with polyethylene are a great choice for food storage, but should not be used for sous vide cooking (boiling in water) as the softening point is 230°F and boiling point for water is 212°F.

Is Tupperware from the 70s safe? ›

The Tupperware® brand didn't nix BPA until 2010, and truly vintage Tupperware may even leach heavy metals like cadmium, lead, and arsenic into stored food.

Is it better to store food in plastic or glass? ›

When it comes to durability, longevity, and its ability to be recycled, glass is the winner! Glass containers for food and beverages are 100% recyclable and can be recycled endlessly without loss in quality or purity, whereas most plastic will end up in a landfill.

At what temperature does plastic leach into food? ›

Polyethylene Terephthalate (PET)

When exposed to high temperatures, food-safe PET can leach the contaminant, antimony, into your foods. On the other hand, cold foods such as salads and wraps can be packaged and stored into PET containers. PET Temperature Limits: Up to 120°F.

How long can you use plastic food containers? ›

While there is no set timeframe for replacing plastic food containers, experts say they should be tossed out when they show visible wear, chips, cracks, or signs of stains and odors. In place of plastic containers, experts recommend opting for glass or stainless steel instead.

Is BPA free plastic still safe? ›

You already know that “BPA” (bisphenol A) is bad for your children (and everyone else). You're probably looking for “BPA-Free” lunch boxes and water bottles. But "BPA-Free" doesn't necessarily mean safe. Science shows that some BPA-Free plastic is made of BPA substitutes that are just as harmful as BPA.

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