What You Need to Know About Food-Grade Plastic Materials? (Part V)

There are stories in every cup, and warmth in everyday life. Hello everyone, "Dong Dong's Cup Talk" is here! Recently, I came across some official media discussing health and food safety concerns related to the plastic materials used in disposable plastic meal boxes and cups.https://www.zhanyict.com/en/ProductsDetail-VB-10355.html I thought this would be a great opportunity to dive deep into the food-grade plastic materials we use in our factory's daily production.

To ensure you trust that this content isn’t just made up, I’ve invited Engineer Li, who has worked for many years at an internationally renowned quality inspection agency, https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlto share his insights. Most of the international safety inspections for the plastic products our factory produces are handled by Engineer Li’s company.

Hello, I’m Engineer Li, though most people prefer to call me Li. I’ve been working in plastic material quality inspection for over 15 years. My daily job involves handling various plastic materials used to produce items that come into contact with food—from baby bottles to lunch boxes, and from water cups to disposable utensils. https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlAs frontline inspectors, we analyze these products inside and out. I’m also a mother, and because I work with plastics every day, I’m extra cautious when choosing daily-use items for my child and family. Today, I’d like to take this opportunity to have a thorough chat about the plastic products we use every day.

PPSU (Polyphenylsulfone) / PCTG (Copolyester) / Tritan™ – The “Three Musketeers” of High-End Baby Bottles

Common traits: All are BPA-free, offering excellent safety and performance.

PPSU: Pale amber in color, extremely heat-resistant (up to 180°C or higher), https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlwithstands steam sterilization, and is highly durable. It is the top choice for premium baby bottles.

PCTG / Tritan™: Nearly as transparent as PC, crystal clear, impact-resistant, and suitable for temperatures ranging from approximately -20°C to 100°C. BPA-free, https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlcommonly used in sports bottles and children’s cups.

Drawback: Relatively expensive.

AS (SAN): High transparency, good hardness, BPA-free. https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlOften used in baby bottle bodies and cups, with a temperature resistance of about -20°C to 90°C.

HDPE (High-Density Polyethylene): Resistant to corrosion, but not heat-resistant. Commonly found in detergent bottles and milk jugs.

Acrylic (PMMA): Extremely transparent, https://www.zhanyict.com/en/ProductsDetail-VB-10355.htmlglass-like, but brittle and not heat-resistant. Not suitable as the main material for food containers.

TPU: Excellent elasticity, often used in straws and phone cases. Food-grade TPU is used in products like straws.