The single most common question we’ve been getting lately is: "Are prepa containers BPA-free?"
The short answer? Yes, 100%. But we know that when it comes to your health and family, "just trust us" isn't enough. You deserve to know why your food storage is safe and how to verify it yourself.
We wanted to give you the exact information you need so you can confidently audit your kitchen. Take a quick look in your cupboards right now. Are you randomly reusing old yogurt tubs, takeout boxes, or mismatched plastic containers just because they fit in the fridge? Stopping that habit is one of the quickest ways to upgrade your kitchen safety. Not all plastic is designed for reuse, and grabbing just any container can mean exposing your meals to unwanted chemicals.
At prepa, we source the best containers made from Polypropylene (Recycle Mark #5) known as PP because it is exceptionally durable, heat-resistant, and engineered specifically for long-term, safe, BPA-free food storage without warping or degrading.
Why You Must Avoid BPA
Before you trust a plastic container with your weekly meal prep, it is crucial to understand what you're trying to keep out of your food. Many older or lower-quality plastics contain chemical plasticizers most notably Bisphenol A (BPA).
BPA is a known endocrine disruptor that can mimic hormones in the human body, potentially interfering with everything from metabolism to reproductive health. These harmful chemicals can leach out of cheap or worn plastics over time, a process that speeds up significantly when plastics are heated in the microwave or run through a hot dishwasher. Choosing BPA-free materials isn't just about food safety; it's a foundational system for protecting your long-term health.
Quick Guide: Decoding the Other Plastic Recycle Marks
While Recycle Mark #5 is the gold standard for meal prep, here is a quick look at the other numbers stamped on plastics and why they don't belong in your meal-prep routine:
-
Mark #1 (PET/PETE): Strictly single-use water and fizzy drinks bottles; highly porous, prone to bacteria, and will degrade or leach heavy metals when exposed to heat.
-
Mark #2 (HDPE): Stiff and opaque (used for milk jugs and detergent); generally stable, but rarely molded into reusable adult meal-prep containers.
-
Mark #3 (PVC): The "poison plastic" containing chlorine and harmful phthalates; never safe for food storage or microwaving.
-
Mark #4 (LDPE): Low-Density Polyethylene; chemically stable, flexible, and food-safe, which is why we proudly use high-grade LDPE to craft our flexible, leak-resistant container lids.
-
Mark #6 (PS): Polystyrene or Styrofoam; can leach styrene (a suspected carcinogen) into food, especially when in contact with hot or greasy meals.
- Mark #7 (Other): A catch-all category for materials outside #1–6. While this group includes older polycarbonate plastics to avoid (due to hidden BPA), it also includes modern, non-toxic materials like PEVA. We use food-grade PEVA for our reusable meal-prep bags because it is 100% BPA-free, phthalate-free, chlorine-free, and a completely safe alternative to single-use plastics for cold storage and snacks.
The Bottom Line
When it comes to fueling your body, don't let hidden plastics undermine your hard work. Ditch the mystery takeout containers, flip your storage upside down, and make sure you are exclusively using trusted containers paired with safe, high-quality components.
Ready to upgrade your routine? Explore our collection of safe, durable, and reliable meal-prep containers and PEVA bags designed with the prepa standard in mind.
