Details
The Blue Lockable Plastic Crisper Box is a high-performance food preservation and storage product with superior sealing and versatility. Its reinforced, lockable seal and food-grade virgin plastic material distinguish it from ordinary food storage containers. The rectangular modular design allows for neat stacking, optimizing kitchen storage space. The easy-locking snap-on lid, combined with a flexible sealing ring, effectively extends food freshness. Made from 100% BPA-free virgin plastic, it is suitable for microwave heating (lid removed), dishwasher top wash, and refrigerator and freezer storage. Its blue exterior combines practicality and aesthetics, fully meeting the daily food preservation and storage needs of the family.
Product Features:
• Lockable Sealing for Freshness: Equipped with an easy-locking lid and a retractable flexible sealing ring, providing excellent sealing performance and effectively preventing air from entering, extending the freshness of fruits, vegetables, leftovers, and other foods.
• Food-Grade Virgin Material: Made from 100% new virgin plastic, BPA-free. Added, meets food contact safety standards, odorless, and poses no safety hazard when in direct contact with food.
• Rectangular Stackable Design: Classic rectangular shape, modular stacking structure, allows for neat multi-layer stacking, fully utilizing the vertical space of kitchen cabinets and refrigerators for more organized storage.
• Durable and Versatile for Multiple Scenarios: Supports refrigerator and freezer storage, microwaveable when uncovered, and dishwasher safe for top rack cleaning. Multi-purpose and suitable for various daily use scenarios.
• Sturdy, Durable, and Easy to Clean: Made of virgin plastic, sturdy, drop-resistant, and durable; smooth surface for easy cleaning, quick wiping of everyday stains, and dishwasher safe.
Application Scenarios:
• Kitchen Fruit and Vegetable Storage: Place in the refrigerator crisper drawer for airtight storage. Vegetables and fruits: Effectively locks in moisture, preventing dehydration, shriveling, and cross-contamination of odors, thus extending freshness.
• Leftover storage: Store leftovers in an airtight container in the refrigerator after meals to prevent spoilage. They can be microwaved directly without the lid, eliminating the need to change bowls.
• Freezer storage: Suitable for storing prepared ingredients and frozen foods in the freezer. The material is low-temperature resistant and will not crack or deform during freezing.
• Dry goods storage: Placed in kitchen cabinets, it seals and stores grains, nuts, and dried goods to prevent moisture and insect infestation, keeping them dry.
• Portable food for outings: The blue locking design provides a strong seal, allowing you to pack fruits, snacks, salads, etc., to prevent spills. Ideal for picnics and short trips.
The blue lockable plastic crisper box is a high-performance food preservation solution engineered for household kitchens, meal prep operations, and portable food storage. As a leading China lockable plastic crisper box factory, we manufacture these containers with reinforced snap-lock seals, food-grade virgin materials, and modular stackable architecture that distinguishes them from ordinary food storage tubs.
The defining feature is the easy-locking snap-on lid combined with a retractable flexible sealing ring, creating an airtight barrier that prevents air ingress and extends produce freshness. The rectangular modular design enables neat multi-layer stacking, optimizing vertical space in kitchen cabinets and refrigerator crispers. The distinctive blue exterior combines practical visibility with aesthetic appeal, making identification effortless in crowded refrigerator environments.
| Parameter | Specification | Benefit |
|---|---|---|
| Material | 100% BPA-free virgin plastic | Odorless, food-contact safe |
| Seal System | Snap-lock lid + flexible sealing ring | Airtight, extends freshness |
| Shape | Rectangular modular design | Neat stacking, space optimization |
| Temperature Range | -20°C to +120°C (lid removed) | Freezer to microwave compatible |
| Cleaning | Dishwasher top rack safe | Easy maintenance, hygienic |
The seal system is the critical differentiator of the blue lockable plastic crisper box. Ordinary containers rely on friction-fit lids that loosen with temperature cycling, allowing air exchange that accelerates spoilage.
The easy-locking snap-on lid engages four locking points around the perimeter, each requiring 6-10N activation force—secure enough to prevent accidental opening during transport, yet manageable for adult hands. The retractable flexible sealing ring, typically silicone or TPE with Shore A hardness of 45-55, compresses uniformly against the container rim when locks engage. This creates a pressure seal with leakage resistance verified through inverted water immersion at 25cm head pressure for 24 hours.
The airtight seal locks in moisture for leafy vegetables, preventing dehydration and shriveling. For cut fruits, it blocks ethylene gas exchange that accelerates browning. Comparative testing shows 2-4 days additional freshness for produce versus loose-lid containers. The seal also prevents cross-contamination of odors between refrigerator compartments—garlic and onion aromas do not transfer to dairy or desserts stored in adjacent blue lockable plastic crisper boxes.
A credible China lockable plastic crisper box factory uses 100% virgin plastic—never recycled or regrind material that could introduce contaminants or compromise clarity.
The material is typically food-grade PP (polypropylene, resin code #5) selected for its thermal stability, chemical inertness, and dishwasher durability. BPA-free certification is verified through third-party testing per FDA 21 CFR 177.1520 and EU Regulation 10/2011. The virgin resin ensures no residual odors from previous processing cycles, maintaining food taste neutrality.
Virgin PP delivers tensile strength of 30-40 MPa and impact resistance suitable for daily kitchen handling. The smooth surface resists staining from tomato sauce, turmeric, or beet juice—common problems with porous materials. Drop testing from 1.0m onto tile surfaces confirms no cracking or lock mechanism failure.
The rectangular modular architecture of the blue lockable plastic crisper box maximizes storage density in confined spaces.
The flat lid surface and uniform footprint enable stable multi-layer stacking in refrigerator crispers and kitchen cabinets. Unlike round containers that waste corner space, rectangular shapes tessellate efficiently with 90%+ space utilization. Stack height of 4-6 units is stable under normal handling, with interlocking geometry preventing lateral sliding.
The distinctive blue color serves a functional purpose: rapid identification in crowded refrigerator environments. Users instantly distinguish crisper boxes from other storage items without reading labels. Color consistency across production batches is maintained through spectrophotometric monitoring with Delta E tolerance < 1.5.
Placed in refrigerator crisper drawers, the airtight seal locks in moisture for leafy greens and prevents odor cross-contamination. Produce remains crisp 2-4 days longer than with loose storage.
Leftovers store airtight in the refrigerator and reheat directly in the microwave with the lid removed—eliminating bowl transfers and reducing dishwashing burden.
Low-temperature resistance to -20°C prevents cracking during freezing. Suitable for batch-prepared ingredients, frozen fruits, and meal prep portions.
In kitchen cabinets, the airtight seal protects grains, nuts, and dried goods from moisture absorption and insect infestation.
The strong lockable seal prevents spills during transport. Ideal for picnics, short trips, and packed lunches containing fruits, snacks, and salads.
A China lockable plastic crisper box factory controls four critical production stages.
| Checkpoint | Method | Standard |
|---|---|---|
| Resin Purity | FTIR spectroscopy | 100% virgin PP, no regrind |
| Seal Integrity | Inverted immersion, 24h | Zero leakage at 25cm head |
| Lock Activation | Force gauge measurement | 6-10N per locking point |
| Color Consistency | Spectrophotometer Delta E | Delta E < 1.5 batch-to-batch |
| Drop Resistance | 1.0m concrete impact test | No crack, locks functional |
Sourcing from a China lockable plastic crisper box factory requires verifying production capability and customization flexibility.
| Option | MOQ Impact | Tooling Cost | Lead Time |
|---|---|---|---|
| Color Change (Pantone) | +20% | $0 | +3-5 days |
| Capacity Modification | +80% | $5,000-10,000 | +10-15 days |
| Logo Printing (IML) | +40% | $2,000-4,000 | +7-10 days |
| Gift Box Packaging | +10% | $500-1,200 | +3-5 days |
Standard MOQ is 5,000-8,000 units per SKU. The blue color is standard; other colors require masterbatch adjustment with no tooling investment.
China lockable plastic crisper box factories are developing vacuum pump-compatible lids for extended freshness, smart date indicators for expiration tracking, and nestable designs that reduce shipping volume by 60%. The trend toward meal prep culture and food waste reduction continues driving demand for reliable airtight storage solutions.
Four snap-lock points with 6-10N force plus a flexible sealing ring create airtight closure. Regular friction lids loosen with temperature changes, allowing air exchange.
Yes. 100% virgin PP with third-party FDA/EU compliance verification. No recycled content that could introduce contaminants.
Yes, with the lid removed. The body withstands up to 120°C. Never microwave with the lid locked, as pressure buildup can deform the seal.
Produce stays fresh 2-4 days longer. The airtight seal blocks ethylene gas exchange and locks in moisture.
Yes, top rack only. High-heat bottom rack exposure may warp the sealing ring over time.
5,000-8,000 units per SKU. Custom capacities or colors may require 10,000+ units.
Yes. Pantone matching with +20% MOQ and no tooling cost. Popular alternatives: clear, green, and gray.
4-6 units in refrigerator or cabinet environments. The flat lid and rectangular footprint prevent tipping.
Yes. Low-temperature resistant to -20°C without cracking. Ideal for batch-prepared ingredients and frozen produce.
Virgin resin sourcing, seal testing protocols, color consistency control (Delta E < 1.5), and capacity > 20M units/year.
Ningbo Panfeng Mould Plastic Co., Ltd. is a Blue Lockable Plastic Crisper Box Manufacturer, committed to providing customers with high-quality plastic products that reflect environmental responsibility and sustainable manufacturing. We strive to become a leading and trusted brand in the industry.
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