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Plastic Jar Selection Guide: Match Your Product Perfectly

Avoid leaks, spoilage, and unhappy customers. Our expert guide helps you choose a jar that protects your product and boosts your brand.

Plastic Jar Selection Guide: Match Your Product Perfectly

A Step-by-Step Guide for Small Businesses & Brands​

When you sell products like snacks, cosmetics, or household goods, the right plastic jar isn’t just a “container”—it protects your product, makes it look appealing on shelves, and even helps customers trust your brand. But with so many options, how do you pick the one that fits your needs? At Guangxi Yingmei Packaging Products Co., Ltd., we’ve helped hundreds of clients find perfect plastic jars (and matching lids like aluminum caps!) for their products. Below is a simple, practical guide to make your choice easy.​

Start Here: The #1 Rule of Jar Selection

First, always let your product lead the decision. The jar’s job is to protect and preserve what’s inside. For instance, a thick cream needs a wide mouth for easy access, while a water-based lotion requires a tight seal to prevent evaporation. Furthermore, you must test for compatibility. Some ingredients can interact with certain plastics. Overlooking any one of these aspects can lead to compatibility issues or a poor customer experience. Always start by defining your product’s specific characteristics and requirements.Always request samples from your supplier to test with your actual formula for at least 48 hours.

350ml pink empty PET plastic jar with aluminum seal cap

Demystifying Plastic Materials: PET vs. PP vs. HDPE

Next, understand your materials. The type of plastic determines clarity, flexibility, and chemical resistance. The U.S. Food and Drug Administration (FDA) provides guidelines on materials safe for consumer products, which you can read about here.

To make it easy, here’s a quick comparison:

FeaturePET (Polyethylene Terephthalate)PP (Polypropylene)HDPE (High-Density Polyethylene)
ClarityCrystal ClearTranslucent or OpaqueOpaque
FlexibilityRigidFlexibleRigid
Best ForProducts you want to see, food-grade itemsHot fill products, squeezable jars, chemical resistanceProducts needing light protection (e.g., vitamins), durable goods

Second: Pick the Right Size & Capacity​

Size matters—too big, and customers will think they’re getting less product; too small, and you’ll have to restock more often. Here’s how to decide:​
Start with your “typical serving” or “usage amount.” For a travel-size face cream, a 50ml jar is perfect. For a family-size peanut butter, a 500ml or 1000ml jar works better.​
Check your shelf space. If you sell in small stores, shorter, wider jars save space (our 200ml “wide-mouth” jars are popular for this!). If you sell online, lighter jars (like our PET options) lower shipping costs.​
We have over 20 sizes of plastic jars, from 25ml to 1000ml—you can mix and match to fit different product lines.

Plastic Jar Selection Guide: Match Your Product Perfectly

Third: Don’t Forget the Seal (and Lid!)​

Moreover, the jar is only as good as its seal. A poorly designed closure can allow air ingress, leading to product oxidation and spoilage.That’s why we focus on reliable sealing for all our jars:​
Spiral lids: Most of our plastic jars come with spiral lids (some even have rubber gaskets!) that lock in freshness. Great for dry goods like cereal or coffee.​
Aluminum lids: For a more premium look (and extra seal), pair our jars with aluminum lids. They’re popular for cosmetics like face masks or high-end snacks.

aluminum cap


Flip-top lids: If your customers use your product often (like hand sanitizer), flip-top lids are convenient—no need to twist open every time.​
Pro tip: Ask us for a sample! Test the seal with your product to make sure it works before you order in bulk.​

Fourth: Check Compliance & Safety​

You don’t want to risk selling products in jars that don’t meet safety standards. This is especially important for food, cosmetics, or baby products. At Guangxi Yingmei:​
All our plastic jars are made from food-grade or cosmetic-grade materials (PET, PP) that meet global standards.
We provide certificates for every batch, so you can show your customers (or regulators) that your packaging is safe.​
For eco-conscious brands, we also offer recyclable plastic jars—ask about our “green packaging” options!​

50ml Refillable empty clear pet plastic jar sealed jar

Quality Matters—And We Deliver It​

Quality matters when your product sits on store shelves. Quality ensures your plastic jar doesn’t crack during shipping. Quality builds trust with your customers, making them choose your brand again. At Guangxi Yingmei, we’ve been making high-quality plastic jars (and aluminum packaging like aluminum cans and boxes) for many years. We don’t just sell jars—we help you find a packaging solution that fits your budget and your brand.​
Ready to find your perfect plastic jar? Browse our full collection here Ou contact our team directly—we’ll answer your questions and send free samples.

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