How to Choose the Right Seafood Containers for Cold Chain Logistics

About Us — Your Trusted Partner in Cold Chain Packaging

Founded in 2008, Ningbo Wanma Plastics Co., Ltd. is strategically located in Fenghua, Ningbo City, Zhejiang Province, one of China’s most innovative industrial regions. Over the past 15+ years, we’ve grown into a specialized manufacturer known for cutting-edge rotational molding (rotomolding) technology, with a focus on food-grade insulated containers.

What Sets Us Apart:

One-Piece Seamless Molding: Unlike traditional assembly methods, our products are molded in a single piece, significantly reducing contamination risk and improving durability.

Double-Wall PU-Filled Structure: Our sandwich-structured containers are filled with rigid polyurethane foam for superior thermal insulation.

Strong R&D Capability: We maintain our own product development lab and testing equipment to meet evolving cold chain needs.

Global Food Safety Compliance: All materials and production meet or exceed GB, FDA, and EU 1935/2004 standards.

Global Business Mindset: We proudly export to 40+ countries and offer multi-language customer support.

Why the Right Container Matters in Seafood Cold Chain

Seafood is a highly perishable commodity, and any compromise in temperature during storage or transit can lead to spoilage, foodborne illnesses, and financial loss. Selecting the right container is not just about storage — it's about safeguarding freshness, quality, and reputation.

Challenges in Seafood Cold Chain Logistics:

Temperature fluctuations during long transit

Cross-contamination risks

Exposure to seawater and UV during handling

Rough treatment during loading/unloading

What Our Containers Offer:

PU insulation ensures 48–72+ hours of cold retention at -18°C to 4°C

Smooth, non-porous interior walls for easy cleaning and hygiene

Designed for safe stacking and forklift handling

Optional lid seals, drain plugs, RFID/QR tracking, and vent systems

Match Container Type to Your Seafood Product

Different seafood categories require different logistics strategies. From size to insulation, here's how to choose:

All Wanma containers are rotomolded for enhanced durability and feature seamless insulation walls for extreme conditions.

Shipping Distance & Time: Choose for Performance

Shipping conditions significantly influence the type of container needed. Whether it’s a local delivery or a 7-day ocean voyage, our solutions scale accordingly:

We also offer performance testing data and ice-retention reports for logistics planning.

Global Standards Compliance & Certifications

Food safety is at the core of our manufacturing. Every product from Ningbo Wanma complies with:

China GB 4806.7 national food-contact material regulations

FDA CFR 21 for plastic food containers

EU 1935/2004 for materials intended for food contact

HACCP-friendly design for food processing environments

Available SGS, Intertek, and ISO 9001:2015 certification reports upon request

This ensures your seafood meets both local and international food chain audit requirements.

Our Customization Capabilities

We don’t believe in one-size-fits-all. Our team offers tailored solutions to meet every client’s cold chain logistics strategy:

All customization projects include CAD prototyping, sampling, and delivery timeline planning.

Why Customers from 40+ Countries Choose Wanma

Technical Depth: Our R&D team works closely with logistics engineers to meet temperature, volume, and compliance targets.

Thermal Engineering: PU foam density and wall thickness are optimized for prolonged cold retention.

Export Optimization: All containers are designed for container stacking, EU pallet sizes, and bulk shipment.

Responsive Service: From inquiry to after-sale support, our team ensures fast replies and full transparency.

Sustainability Focus: All containers are reusable, recyclable, and built to reduce long-term carbon footprint.

We’re proud to have supplied seafood exporters, processing plants, and cold chain companies across Europe, Asia, and North America.