Vented PET Berry Clamshell | Flat & Convex Base | 125×125×35mm | 16.5g | GHW-125A

QUNLU presents the Vented PET Berry Clamshell | Flat & Convex Base | 125×125×35mm | 16.5g | GHW-125A, a purpose-built solution engineered to elevate produce presentation, extend freshness, and streamline retail handling. This Vented PET Berry Clamshell is designed with meticulous attention to form and function, combining transparent clarity with robust performance. The clear PET clamshell is an ideal choice for berry growers, packers, distributors, and retailers seeking a reliable, cost-effective container that enhances shelf appeal while protecting delicate fruit

Product Overview

The QUNLU Vented PET Berry Clamshell is a vented berry packaging option measuring 125×125×35mm and weighing just 16.5g. This flat & convex base container provides a stable footprint for stacked display and a gentle convex interior to cradle berries and prevent bruising. The vented design optimizes airflow and moisture control, key for maintaining berry quality during transport and on shelf. Lightweight 16.5g packaging reduces material use while preserving structural integrity, and the clear PET clamshell offers high clarity for premium product visibility. As a clear PET clamshell, this solution combines recycle ability and consumer preference for recyclable materials with the manufacturing precision required for high-speed packing lines

Key Features

- PET clamshell construction: The clear PET clamshell is made from high-clarity PET, giving crisp visual presentation and excellent barrier properties. PET clamshell materials are favored in vented berry packaging because they balance clarity, toughness, and sustainability

- Vented berry packaging design: Strategically placed vents on this vented berry packaging ensure consistent airflow, reducing condensation and slowing decay. The vented berry packaging design is optimized to protect fruit while enabling visual inspection without opening the pack

- Flat & convex base container: The flat & convex base container integrates a flat exterior footprint for stable retail stacking and a subtle convex interior mold that gently supports berries, minimizing pressure points and surface damage

- Lightweight 16.5g packaging: At only 16.5g, the lightweight 16.5g packaging reduces transportation costs and environmental footprint while meeting the durability needs of commercial handling. The lightweight 16.5g packaging also enables higher packing densities and reduced material expense

- Precision dimensions: Measuring 125×125×35mm, this clear PET clamshell provides an optimized volume for single clamshell berry or mixed small-fruit assortments. The dimensions suit automated filling systems and trending retail pack sizes that promote convenience and impulse sales

- Secure hinge and closure: Engineered hinge and snap-lock features deliver a reliable seal that prevents accidental opening yet allows easy customer access. The clear PET clamshell closure retains shape over repeated openings, ensuring product protection from farm to shelf

- Recyclability and sustainability: As clear PET clamshell packaging, this product aligns with recycling streams and consumer expectations. The recyclable clear PET clamshell reduces lifecycle environmental impact compared with less-recyclable alternatives and supports circular packaging initiatives

Applications

This Vented PET Berry Clamshell is ideal for a broad range of applications. As vented berry packaging, it is perfect for strawberries, raspberries, blueberries, blackberries, and other delicate small fruits. Growers and packers benefit from the flat & convex base container for automated packing lines and careful hand-pack operations. Retailers appreciate the consumer-friendly presentation of clear PET clamshell, which enhance shelf aesthetics and promote impulse purchase. Farmers' markets and specialty produce stores also gain from the lightweight 16.5g packaging, which balances affordability with protection and display quality

Innovation and Technical Advantages

QUNLU’s Vented PET Berry Clamshell showcases innovations that deliver practical advantages in real-world supply chains. The vented berry packaging includes a vent geometry optimized through airflow modeling to limit hot spots and condensation. By focusing on vent placement and aperture sizing, the vented berry packaging reduces microclimates within the pack, prolonging shelf life. The clear PET clamshell construction employs high-clarity resins and precise thermoforming to achieve consistent wall thickness and a smooth surface that resists stress cracking under typical handling loads

The flat & convex base container is an innovative compromise between stability and product cushioning. The flat exterior supports stacked display and pallet stability, while the convex interior gently lifts fruit away from the base to lower contact pressure points. This unique flat & convex base container reduces bruising risk during vibration and compression events encountered in distribution

Lightweight 16.5g packaging is another technical triumph. By clear PET clamshell optimizing part geometry and thickness distribution, QUNLU clear PET clamshell achieves the lowest feasible weight without sacrificing stiffness or closure performance. The lightweight 16.5g packaging reduces raw material usage and shipping weight, contributing to lower carbon emissions and improved cost efficiency

Manufacturing and Quality Control

QUNLU applies rigorous manufacturing standards to ensure every clear PET clamshell meets dimensional and performance criteria. Advanced thermoforming and automated trimming processes yield consistent packs, while optical inspection systems verify clarity and absence of warpage. Closure engagement is tested to ensure reliable snap-fit performance across production batches. The clear PET clamshell vented berry packaging undergoes airflow and moisture testing to validate vent effectiveness under refrigerated and ambient conditions. The lightweight 16.5g packaging is validated through compression, drop, and vibration tests to guarantee it withstands the stresses of modern logistics

Benefits to Stakeholders

- For growers and packers: The clear PET clamshell design supports high-speed filling, reduces product damage, and improves yield by protecting delicate fruit. The lightweight 16.5g packaging lowers material costs and shipping expense, improving margin

- For retailers: Vented berry packaging offers attractive shelf presentation, sustained freshness, and minimized returns due to spoilage. The flat & convex base container facilitates display and stacking, maximizing shelf efficiency

- For consumers: clear PET clamshell provide product transparency for purchase confidence, while vented berry packaging preserves texture and flavor longer. Lightweight 16.5g packaging is easy to carry and convenient to open and reseal

① Flat or convex base — same lid, two fill depths. Flat for bulk value packs; convex for spread-out premium display.

② Integrated micro-hole ventilation — passive airflow reduces condensation. Holes molded during thermoforming.

③ 16.5g, 1,000 pcs/ctn — high-density packing for cost-efficient volume produce programs.

④ Hinged one-piece — one-motion close for manual and semi-automated berry packing lines.

⑤ Full transparency — berries visible from all angles. No opaque packaging between consumer and product.

All sizes available in virgin PET and GRS-certified rPET with full chain-of-custody documentation.

Ventilation holes are formed during thermoforming via pin arrays in the mold tooling — consistent size and placement across every unit. The hole pattern creates passive air exchange: warm internal air exits through upper lid vents while cooler ambient air enters through lower base vents. This circulation reduces condensation — the primary cause of berry softening and mold growth in sealed PET containers on refrigerated shelves.

Flat base provides maximum fill depth for bulk berry packs; convex base raises the floor for a shallower, more spread-out premium presentation. Both use the identical clear vented lid — the packing line can switch between base types without changing the lid station. Hinged design closes in one folding motion for packing line speed. The 125×125mm square format represents the standard retail berry pack size — recognized by consumers across North American, European, and Asia-Pacific supermarket produce sections.

BPA-Free

PFAS-Free

FDA 21 CFR

Class 100,000 Clean Room

KIEFEL · ASANO

ISO 22000

BRC

GRS

Ventilation holes formed during thermoforming via integrated pin arrays — not post-punched. Shared tooling platform with all QunLu berry clamshells. 1,000 pcs/ctn. Ships from Pinghu via Shanghai/Ningbo. Ventilation holes formed during thermoforming via tooling pin arrays — consistent, not post-punched..

Q: Flat vs convex base?

A: Flat=maximum berry count for value packs. Convex=raised floor, fewer berries spread wider for premium display.

Q: Can 125A, 125B, 185A be ordered together?

A: Yes — shared tooling, co-produced and co-shipped.