China Mason Jar 4 Oz Manufacturers & Exporter

Precision Engineering, Food-Safe Structural Plastics, and Scalable OEM/ODM Drinkware Solutions for B2B Global Supply Chains.

Global B2B Market Analysis: 4 Oz Mason Jars

Strategic insights into the commercial, technical, and logistical dynamics shaping the premium mini-container and beverage industries.

1. Global Industrial Landscape

The 4 Oz Mason Jar is no longer restricted to traditional home preservation. Today, it represents a critical SKU for high-volume commercial industries including gourmet food packaging, sample packaging, promotional event management, and cosmetics. Because of their 70G regular mouth standard, these jars are highly compatible with automated filling lines globally, offering B2B distributors a highly versatile asset with reliable international supply chains.

2. Materials Engineering & Reusability

Modern sustainability targets have shifted market expectations. In commercial settings, traditional soda-lime glass presents safety and transportation hazards. Our manufacturing facilities focus on developing shatterproof, BPA-free plastic alternatives—including PET, Tritan, and eco-friendly bio-plastics (like PLA). These materials maintain the signature visual clarity of premium glass while providing a lightweight, break-resistant structure that minimizes carbon emissions during shipping.

3. Regulatory Compliance & E-E-A-T

Every commercial container intended for drinkware or food contact must satisfy rigorous regulatory criteria. As a premier Chinese manufacturer, we ensure all materials pass FDA CFR 21, LFGB, and EU Food Contact Regulation 10/2011 tests. Our production processes are audited under ISO 9001 and BSCI guidelines, guaranteeing that your products meet the strict import requirements of North American and European logistics hubs.

Engineering Roadmap: From Concept to Container

How we leverage advanced injection blow molding (IBM) and custom tooling lines to translate B2B designs into mass-produced realities.

01

Consultation & Structural Design

We perform draft reviews and structural calculations, evaluating parameters like wall thickness distribution, structural ribbing, thread pitch calibration, and optimal material selection based on your filling temperature requirements.

02

Mold Fabrication & Flow Simulation

Using CAD modeling and CNC tooling in our specialized molding lines, we create precision injection cavities. Mold flow analysis determines the optimal gate position, eliminating visual blemishes and guaranteeing structural consistency.

03

Sampling & Functional Testing

We generate pre-production prototypes to test thread alignment, seal integrity, and drop safety. Lids, caps, and lining materials (such as silicone or plastisol) are tested together to guarantee leakproof performance under pressure.

04

Scale Production & Quality Inspection

Upon sample approval, high-speed automated extrusion blow molding begins. Standardized inline inspections verify weight, dimensions, and wall uniformity, keeping defect rates below AQL 1.0 limits.

Your Reliable Plastic Drinkware Manufacturer

Funtime Plastics (Xiamen) Co., Ltd. — A Subsidiary Factory of Charmlite established in 2013.

Since our founding in 2013, Funtime Plastics has specialized in designing and manufacturing high-performance plastic yard cups, slush cups, tumblers, and novelty drinkware for the global amusement, hospitality, and food service industries. Operating under our parent brand Charmlite, we have developed a expansive catalog featuring over 100 designs, from classic Mason jars to complex novelty containers, matching precise PMS colors and custom brand requirements.

With 42 injection molding, extrusion, and blow-molding machines alongside high-precision automated branding equipment, we ensure 99.9% on-time delivery. Our in-house mold workshop allows for efficient, flexible custom designs, helping you bring new product designs to market swiftly and cost-effectively.

20+
Years of Industry Experience
20K+
Daily Cup Output
143+
Skilled Workers
1000+
Global Brand Clients

Comprehensive Product Classifications

Leveraging our specialized manufacturing facility to supply versatile drinkware lines designed for safety, reusability, and brand visual impact.

Plastic Wine Glass Line

Food-grade, LFGB-certified PET and Tritan configurations designed to replace glass in hospitality environments.

Red Wine Glass
Red Wine Glass
Pilsner Glass
Pilsner Glass
Tiki Mug
Tiki Mug
Margherita Glass
Margherita Glass
Stemless Wine Glass
Stemless Wine Glass
Champagne Flute
Champagne Flute
Champagne Glass
Champagne Glass
Hurricane Glass
Hurricane Glass
Crystal Wine Glass
Crystal Wine Glass

Novelty Yard Cup Line

Break-resistant and spill-proof novelty containers, ranging from 12oz to 100oz, optimized for festivals, events, and venues.

Alien Yard Cup
Alien Yard Cup
Meter Yard Cup
Meter Yard Cup
LED Yard Cup
LED Yard Cup
Twist Cup
Twist Cup
Bubble Yard Cup
Bubble Yard Cup
Duck Cup
Duck Cup
Palm Tree Cup
Palm Tree Cup
Beer Boot Cup
Beer Boot Cup
Slush Cup
Slush Cup

Specialty Disposable Cup Line

Crack-resistant cup, lid, and straw systems engineered with tight tolerances to prevent leakage in high-volume settings.

Solo Cup
Solo Cup
PP Coffee Mug
PP Coffee Mug
Snack Drink Cup
Snack Drink Cup
Split Cup
Split Cup
Bubble Tea Cups
Bubble Tea Cups
Color Changing Cups
Color Changing Cups
Disposable Can
Disposable Can
Stadium Cup
Stadium Cup
Rainbow Cup
Rainbow Cup

Ergonomic Water Bottle Line

Durable, lightweight, leakproof personal hydration containers suitable for athletic, promotional, and daily B2B distribution.

Clear Water Bottle
Clear Water Bottle
Milk Carton Water Bottle
Milk Carton Water Bottle
3 In 1 Water Bottle
3 In 1 Water Bottle
Kids Water Bottle
Kids Water Bottle
Square Water Bottle
Square Water Bottle
Squeeze Water Bottle
Squeeze Water Bottle
Sport Water Bottle
Sport Water Bottle
Silicone Folding Water Bottle
Silicone Folding Water Bottle
Bear Bottle
Bear Bottle

Expert Customization & OEM/ODM Workflow

How we collaborate to transform your custom branding and unique product requirements into physical products.

Concept Design Icon

1. Ideation & Consultation

We collaborate with you to define container shapes, application constraints, and material parameters based on your target market requirements.

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2. Structural Engineering

Our team designs custom configurations—from standard bottle threads and cap selection to logo styling, finishing options, and custom outer packaging.

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3. Prototypes & Sampling

We manufacture physical sample iterations for hands-on validation. This helps verify aesthetic parameters and structural properties before starting mass production.

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4. High-Volume Production

Supported by 42 injection and blow molding machines, we scale up production while maintaining rigorous QC standards and on-time shipment schedules.

ODM Services

ODM Services

Transform raw concepts into branded commercial lines. We support customized logo branding, retail packaging design, and Pantone color matching to align with your market positioning.

OEM Capabilities

OEM Solutions

Comprehensive contract manufacturing from custom molds to finish lines. We integrate precision engineering and cleanroom environment standards for your proprietary shapes.

Flexible MOQ Options

Flexible B2B Orders

We offer scalable container volumes and adaptable production minimums to help test new markets. Note: As a primary factory, we do not accept dropshipping or consumer retail orders.

Certified Production Standards

Our manufacturing processes undergo independent, annual audits to ensure compliance with international retail and safety guidelines.

Funtime Plastics maintains active certifications, including Sedex, Disney FAMA, BSCI, and Merlin. These regular inspections guarantee that our factory complies with strict environmental, ethical, and product quality standards.

Audit Cert 1
Audit Cert 2
Audit Cert 3
Audit Cert 4
Audit Cert 5
Audit Cert 6
Audit Cert 7
Audit Cert 8
Audit Cert 9
Audit Cert 10
Audit Cert 11

Enterprise Supply Chain Solutions

Partnering with global brands to ensure stable procurement, reliable compliance, and optimized container configurations.

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Structured Quality Assurance

Our quality assurance framework follows international AQL standards. We perform rigorous mechanical and structural checks, monitoring raw materials through to final pre-shipment inspections.

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Experienced Operations Team

With 18 years of B2B production and export experience, our seven dedicated departments coordinate logistics, customs clearance, and product manufacturing for smooth international delivery.

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Comprehensive OEM & ODM Support

From custom product styling to customized packaging solutions, we maintain reliable supply chains and consistent quality standards to support brand growth.

Industrial FAQ: 4 Oz Mason Jars & Reusable Drinkware

Expert answers addressing the technical, structural, and chemical questions common to B2B procurement managers.

What makes 4 oz plastic Mason jars a suitable alternative to glass in commercial settings?
Glass Mason jars present safety risks and higher shipping weights in amusement parks, event venues, and high-volume packaging lines. Our plastic 4 oz Mason jars (available in PET, Tritan, and specialized bio-plastics) are shatterproof and lightweight, significantly reducing transportation costs and product loss. Additionally, they comply fully with food contact safety guidelines (FDA and LFGB) for commercial drinkware.
Which plastics are recommended for hot-fill processes versus cold-beverage uses?
For cold-fill operations, draft beers, desserts, and ambient storage, PET is highly cost-effective and provides exceptional clarity. For hot-fill applications (up to 95°C / 203°F) or products requiring repeated commercial dishwashing, we recommend Tritan or heat-resistant PP. We can customize the resin selection to match your exact processing requirements during the design stage.
Can the neck threads of custom 4 oz Mason jars match standard lids?
Yes. Our custom 4 oz Mason jars are engineered to standard industry thread patterns, typically matching the 70G (70mm Regular Mouth) or 48-400 GPI configurations. This ensures complete compatibility with standard metal lids, plastisol-lined closures, and one-piece PP shaker caps.
What is the typical B2B tooling time frame for custom jar shapes?
The typical lead time for custom mold fabrication and refinement is between 25 and 35 days. This includes CAD verification, mold flow analysis, CNC tooling fabrication, and the delivery of initial physical samples for approval before starting scale production.
Does your factory support eco-friendly materials like PCR or PLA?
Yes. In line with global sustainability trends, we offer manufacturing options using Post-Consumer Recycled (PCR) PET and biodegradable Polylactic Acid (PLA) resins. These materials allow brands to reduce plastic waste while maintaining product durability and safety.