HomePET Knowledge BaseIs PET Plastic Safe for Food Storage? One Article to Know

Is PET Plastic Safe for Food Storage? One Article to Know


Storing food requires the right container for safety and quality. PET plastic is a common choice. But is PET plastic safe for food storage? Let's explore this. Understanding the safety of PET plastic for food storage is essential for keeping your food fresh and safe.


What is PET Plastic?

Polyethylene terephthalate, commonly known as PET or PETE (formerly PETP or PET-P), stands as the predominant thermoplastic polymer in the polyester lineage. It finds widespread application in fabricating clothing fibers, crafting containers for both liquids and food products, and employing thermoforming techniques in manufacturing.While is PET plastic safe for food storage? First, let’s see what is food-safe plastics.

Is PET Plastic Safe for Food Storage
What is Food Safe Plastics?

The safest plastic containers for food are those with a food-grade rating of 2, 4, or 5. The best materials for food storage are HDPE, LDPE, and PET plastics. Polypropylene in food containers is also considered safe, with no risk.


Food Container Number Guide

Plastics marked 2, 4, and 5 are safe for food containers. The FDA has approved HDPE, LDPE, PET, and polypropylene for food storage. Polypropylene in food containers is considered safe.

Plastic Containers: Safe or Not for Storing Food?

Are Plastic Bottles Safe for Storing Drinks and Food?

Plastic containers with a food-grade rating of 2, 4, and 5 are the safest for storing food and drinks. They help prevent accidental toxin ingestion and are considered the best for food storage.

High-density polyethylene (HDPE), Low-density polyethylene (LDPE), Polyethylene Terephthalate (PET), and polypropylene are the best materials for storing food safely. These materials are chemical-resistant and can tolerate high levels of heat.

Although polypropylene has a high heat tolerance, it can release chemicals into food, so it's best to avoid using containers made from this material.


Is PET Plastic Safe for Food Storage?

Consuming food is a common activity for people. This means that food containers are also often used. It's important to know how to choose the right food containers, especially plastic ones that could be harmful.

There are three guidelines to determine if food-grade plastic is safe for food storage: check the recycling number chart, look for a "food-grade" label that follows FDA regulations, and choose plastics marked with numbers 2, 4, and 5 for food storage.


To stay safe, look for food-grade labels, green plastic numbers, avoid reusing plastic marked 1, and pay attention to color-coded plastic numbers for long-term food storage.


These steps ensure that food storage doesn't lead to accidental ingestion or harmful chemicals leaching into the food.


Plastics You Shouldn't Use for Food

Plastic bottles are good for storing drinks and food but might have harmful chemicals like BPAs.

PET plastic is safe for storing food and doesn't have toxins.

Avoid using plastics with code numbers 1, 3, and 6 for food storage because they can release harmful chemicals into food.


If you are looking for a reliable PET supplier, do not hesitate to choose Wkai PET, we offer the most professional polyester chips for any kind of need.


Frequently Asked Questions about Plastic Safety

What Are the Safest Plastic Containers for Food?

The safest materials for storing food in plastic containers are HDPE, LDPE, PET, and polypropylene. These materials are good for food storage because they resist chemicals and can handle high heat. If you prefer not to use plastic, you can also store food in glass, stainless steel, or silicone containers. However, some plastic containers, like those with certain code numbers, can release chemicals into the food.

Be sure to check the recycling number marked on the bottom of the plastic containerto avoid this.


What Material Is Best for Storing Food Safely?

The safest plastic containers for storing food are categorized from number 1 to number 7.

Grades 2, 4, and 5 are considered the safest for food storage.

HDPE, LDPE, PET, and polypropylene are rated safe for food storage due to their characteristics, such as chemical resistance and high heat tolerance.

There is a risk from polypropylene in food containers, as certain types of plastics could potentially leach chemicals into foods, so caution is advised in utilizing this type of plastic for storing food safely.


What Can I Use Instead of Plastic for Storing Food?

Alternative materials for storing food instead of plastic include:

Stainless steel
Beeswax wrap
These materials are reusable, environmentally friendly, and safe for food storage. One can ensure their safety by checking for regulation compliance, such as the food-grade rating or recycling number on the material according to the FDA standards. Glass and stainless steel are considered the safest options for food storage as they do not leach harmful chemicals into food. Certain types of acidic or oily foods like citrus fruits, tomatoes, and oily fish are better stored in glass or stainless steel containers to prevent potential chemical contamination.


Is There a Risk from Polypropylene in Food Containers?

Polypropylene can contain harmful chemicals.

It's considered safe for food storage by the FDA due to its chemical resistance and high heat tolerance.

Regulations ensure that polypropylene must be free of harmful chemicals, as per the Food and Drug Administration.

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