Which Performance Plastic Sheets Are FDA Food Safe?
By Industrial Plastic Supply, serving food processing & medical industries – over 50 years
If you search for “FDA food safe plastic,” you’ll find long lists of materials and not much guidance on how to choose between them. After more than 50 years of supplying performance plastic sheet and rod to food processors, restaurants, and medical manufacturers, we can tell you the real answer is a little less simple than a list. Here’s what we tell customers every day.
The short answer
Several performance plastics are available in FDA compliant grades, including HDPE, PET, Acetal, Nylon, and PEEK. The right one depends on your application: temperature, hardness, wear, and chemical exposure. And the most important step comes before you pick any material: verify your requirements first.
HDPE: the workhorse of food-safe plastics
The food safe question we hear most often is about HDPE, the material commonly used for cutting boards. There’s a reason it comes up so much. HDPE (high density polyethylene) is cost effective, available in FDA compliant and NSF approved grades, and is one of the most affordable performance plastics you can buy.
What makes it so well suited to food contact:
- FDA and NSF approval. For many food service buyers, this is the deciding factor.
- Very low absorption of food material. It resists soaking up what you cut on it.
- Easy to clean. A big deal in any commercial kitchen.
- Relatively lightweight. Easier to handle, install, and replace.
- Cost effective. You get the right physical properties without paying for more than you need.
Case study: the restaurant chain that couldn’t find the right material
Many of our clients come to us because they struggled to find local sources for food safe materials. One restaurant chain was in exactly that position. They needed materials that would work in their restaurants and still be affordable.
The requirement was specific: cooked meat had to be cut on an FDA approved grade of plastic. We recommended HDPE sheet. It’s cost effective, and it has the physical properties the application calls for. The chain got a compliant, quality material without overspending.
When HDPE isn’t enough
HDPE is on the softer side of performance plastics, and that’s where it can fall short. Customers move beyond it for three main reasons:
- They need higher temperature capability.
- They need a harder material.
- They need higher chemical resistance.
In those cases, the obvious candidates are Acetal, Nylon, PET, and PEEK.
Case study: when hot material warps HDPE
A food processing company came to us needing to cut hot material coming straight out of a hot oven. Their HDPE was softening and warping. The material was food safe, but it wasn’t right for the heat.
They moved to PET, and the problem went away, while they stayed food grade compliant. That’s the lesson in one example: “food safe” tells you a material can be used around food. It doesn’t tell you it will survive your process.
“FDA compliant” vs. “FDA approved”: a distinction that matters
This is one of the most commonly misunderstood points. Our products are FDA compliant, not FDA approved. The reason is that we supply a raw material, not a finished food grade product. Our clients then machine or modify that material into a part, and the finished part is what needs to be FDA approved.
In other words, starting with a compliant material is necessary, but it isn’t the end of the process. If you’re fabricating parts, make sure you understand your own responsibility for the finished product.
Beware of “food grade” that isn’t
Some of our clients have told us they purchased “food grade plastic” from other companies, and the material clearly had foreign objects in it. That is certainly not food grade.
This is why sourcing matters. We only source our food grade materials from quality American manufacturers, and we supply them with lot and batch traceability. If a problem ever comes up, you can trace the material back to where it came from. A label alone shouldn’t be enough for you.
Questions to ask any plastics supplier
Before you buy, ask:
- Who manufactures the material, and where?
- Can you provide lot and batch traceability?
- Is this grade FDA compliant, and is it NSF approved if my application requires it?
- Will it hold up to my temperature, cleaning chemicals, and wear conditions?
Our one piece of advice
Verify the requirements of a material before choosing a solution. Know your temperature, your cutting or wear conditions, your cleaning chemicals, and the regulatory standards your finished part has to meet. Then match the material to the application.
Not sure where to start? Contact Industrial Plastic Supply and tell us what you’re making and how it will be used.
We’ll help you find an FDA compliant material that fits both your application and your budget.