Factory Direct Stackable Square Food Containers | Clear Lid Salad Boxes
Food-Grade Certified
Safe materials compliant with EU & FDA standards
Leak & Grease Resistant
No leaks, no mess, reliable for takeaway
Strong & Stackable
Durable structure, optimized for storage
Custom Branding
OEM & ODM supported for private label
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Product Detail
Factory direct stackable square food containers with clear PET lid. Space-efficient kraft design for delivery and catering. ISO certified. Get bulk pricing!
Overview
Engineered in our Shandong facility to solve the spatial efficiency and logistics optimization challenges that food delivery platforms, high-volume catering operations, and centralized kitchen distribution networks face daily, our stackable square kraft food containers with clear PET window lids exploit the geometric advantage of the square form factor — zero wasted interstitial space during stacking, nesting, shelving, transit-crating, and shipping-carton packing — to reduce per-unit storage footprint, increase delivery-bag capacity, maximize refrigerated display density, and lower international freight cost compared to round or irregular-shaped alternatives. Every structural dimension — the 90-degree corner geometry, the lid-to-base stacking interface, the sidewall draft angle, and the base reinforcement pattern — has been calibrated through more than 15 years of production and logistics optimization collaboration with food delivery infrastructure suppliers, centralized kitchen operators, airline caterers, and event management companies who process thousands of containers daily and measure operational efficiency in containers-per-square-meter and units-per-carton. The result is a container system where packaging logistics performance is engineered with the same rigor as food containment — because for high-volume B2B operations, how efficiently containers stack, store, ship, and deploy is as commercially critical as how well they hold the food.
Product Specifications
| Parameter | Details |
|---|---|
| Material | Base: 350g imported virgin kraft paper (no fluorescent agents) with food-grade PE interior coating; Lid: food-grade PET transparent window with snap-fit stacking-compatible engagement |
| Available Sizes | 500ml, 750ml, 1000ml, 1300ml — full stackable square range |
| Capacity Range | 500ml individual portions through 1300ml large meals — complete operational range for delivery, catering, and distribution |
| Wall Thickness | Kraft base: approx. 0.40–0.45mm (350g kraft + PE); PET lid: approx. 0.20–0.25mm — rigid PET profile supports multi-unit vertical stacking loads |
| Coating Type | Interior PE coating on kraft base for grease resistance and moisture barrier; PET lid engineered for optical clarity and structural rigidity under vertical stacking compression |
| Temperature Resistance | Kraft base: -20°C to 100°C; PET lid: -20°C to 60°C — suitable for chilled delivery, ambient catering service, and warm food distribution |
| Color / Print Options | Natural brown kraft base (standard); custom printing for delivery brand identity, catering company branding, and operational identification coding |
| Shelf Life | 24 months in dry storage |
| Certifications | EU EC 1935/2004, US FDA 21 CFR, Japan Food Sanitation Act, Korea MFDS, FSC, SGS tested |
Key Features & Benefits
| Feature | Benefit for B2B Buyers |
|---|---|
| Square geometry eliminates 100% of interstitial packing void | Round containers leave 21.5% of shelf, crate, and carton floor space unused in the circular gaps between adjacent units — the square form factor eliminates this waste entirely, enabling delivery bags, transit crates, refrigerated shelves, and shipping cartons to hold 20–25% more units in the same footprint |
| PET lid stacking interface supports stable multi-tier vertical assembly | The lid profile is designed to accept the base of the next container in stable, non-sliding vertical alignment — enabling catering teams, delivery packing stations, and retail merchandisers to stack filled containers 4–6 units high without lateral drift, tipping, or lid deformation that damages contents |
| Flat-pack storage prior to assembly minimizes warehouse footprint | Both kraft bases and PET lids ship and store flat or nested in minimal vertical space, reducing warehouse storage volume per thousand units by 60–70% compared to pre-assembled rigid containers — critical for high-throughput kitchens and delivery hubs operating in expensive urban commercial space |
| Standardized square footprint simplifies multi-size order assembly | When a single delivery order contains multiple container sizes — a 500ml side salad alongside a 1000ml main grain bowl — the shared square base geometry allows mixed-size containers to tile together in the delivery bag without the awkward gaps and unstable arrangements that mixed round-and-rectangular combinations create |
| PET window lid enables order verification without opening | Delivery dispatchers, catering coordinators, and QC staff can visually verify container contents through the clear PET lid during final order assembly — reducing packing errors, mislabeled orders, and the food-safety-compromising practice of opening containers for visual confirmation during dispatch |
| Optimized carton packing density reduces international freight cost | The zero-void square packing geometry translates directly into higher unit counts per export carton and higher carton counts per FCL (full container load) — reducing per-unit ocean freight, airfreight, and last-mile distribution cost by 15–20% compared to round containers at equivalent capacity |
Application Scenarios
| Scenario | Description | Recommended Size |
|---|---|---|
| Food delivery platform logistics packaging | Restaurants and cloud kitchens optimizing packaging for UberEats, Deliveroo, GrabFood, Talabat, DoorDash, and Foodpanda operations — where maximizing the number of orders per delivery bag per courier trip directly improves delivery economics and platform ranking through faster fulfilled-order throughput | 750ml (standard delivery salad), 1000ml (large delivery bowl), 500ml (add-on side) |
| Centralized kitchen multi-outlet distribution | Central production kitchen operations assembling salads, grain bowls, and fresh meals for distribution across 10–100+ satellite retail points — requiring containers that maximize transit-vehicle loading efficiency, survive multi-point handling chains, and arrive at each outlet with food presentation intact under the clear lid | 750ml (standard distribution), 1000ml (large distribution), 1300ml (sharing/platter distribution) |
| Airline and railway mass-catering tray assembly | In-flight catering facilities and railway catering centers assembling thousands of individual trays daily — where the square container must tile precisely onto standard tray footprints, stack in galley cart compartments, and pack into aircraft cargo containers with zero wasted volumetric space | 500ml (tray-fit side salad), 750ml (tray-fit main salad) |
| Large-scale event and conference catering | Event catering companies servicing conferences, gala dinners, festival hospitality, and corporate functions packaging 500–5,000+ individual salad portions for simultaneous distribution — where container stackability determines staging-area space requirements, service speed, and labor efficiency | 750ml (conference individual), 1000ml (gala dinner salad), 1300ml (VIP sharing platter) |
| Meal subscription and DTC food box fulfillment | Direct-to-consumer meal subscription companies packing weekly or bi-weekly salad and grain bowl deliveries into insulated shipping boxes where maximizing containers per box minimizes per-subscriber shipping cost and reduces the package size that delivery drivers must handle | 750ml (standard subscription), 1000ml (premium subscription) |
Target B2B Customers by Market
| Target Market | Customer Type | Key Application Areas / Products |
|---|---|---|
| Europe (Germany, UK, France, Netherlands) | Cloud kitchen and dark kitchen operators (Taster, Karma Kitchen), centralized kitchen distribution companies, airline catering (Gate Gourmet, DO & CO), event catering firms, meal subscription services (HelloFresh fresh-food tier) | European cloud kitchen logistics-optimized packaging, UK dark kitchen salad containers, EU centralized kitchen distribution boxes, German airline catering tray-fit containers, event catering stackable salad packaging |
| Southeast Asia (Singapore, Thailand, Vietnam) | GrabFood and Foodpanda ecosystem logistics suppliers, central kitchen food court distribution operators, airline catering companies (SATS, Thai Airways Catering), hotel banquet and event catering | SEA delivery platform logistics packaging, Singapore central kitchen distribution containers, ASEAN airline catering tray-fit salad boxes, resort event catering stackable packaging |
| Japan & South Korea | Demaecan and UberEats Japan logistics optimization suppliers, Japanese airline catering (ANA Catering), Korean delivery platform packaging (Baemin, Coupang Eats), ekiben train station production facilities | Japanese delivery platform space-efficient packaging, ANA tray-fit salad containers, Korean delivery logistics-optimized boxes, high-volume ekiben production line containers |
| Middle East (UAE, Saudi Arabia) | Cloud kitchen networks (Kitopi), airline catering (Emirates Flight Catering, Saudi Airlines Catering, Alpha Catering), large-scale event management companies, hotel conference catering | Gulf cloud kitchen stackable packaging, Emirates in-flight tray-fit salad containers, Saudi event catering high-volume salad boxes, Dubai conference catering distribution containers |
| North America (USA, Canada) | Ghost kitchen logistics operators, DoorDash and UberEats restaurant partners, airline catering (Flying Food Group, LSG Sky Chefs), large-scale corporate event caterers, meal subscription fulfillment centers | North American ghost kitchen logistics packaging, airline catering tray-fit containers, US corporate event stackable salad boxes, meal subscription box-fit optimized containers |
Customization & OEM Options
| Customization Type | Options Available | Lead Time |
|---|---|---|
| Logo Printing | Flexographic 6-color or offset on base exterior sidewalls; delivery brand identity, catering company branding, operational batch-coding, airline livery integration, event sponsor co-branding | 15–20 days |
| Custom Sizes | Modified square dimensions optimized for specific airline tray standards (ATLAS, KSSU), delivery bag internal dimensions, transit crate footprints, or centralized kitchen conveyor-line specifications | 20–25 days (mold development) |
| Material Upgrade | 400g kraft for maximum stacking compression resistance under heavy multi-tier loads; double-side PE for extended-transit moisture protection; PLA-coated base with PLA bio-lid for eco-positioned delivery brands and airline sustainability programs | 15–25 days |
| Surface Finish | Matte natural kraft, anti-condensation exterior coating for refrigerated transit, gloss varnish for catering presentation, water-based protective overcoat, anti-slip base coating for stable stacking on steel and polymer shelving | 15–20 days |
| Packaging Design | Logistics-optimization consultation: airline tray dimensional verification, delivery bag capacity modeling, transit crate packing arrangement, carton unit-density maximization, multi-size operational coding system, centralized kitchen production-line flow analysis | 5–8 days (design phase) |
Why Global B2B Buyers Choose Fude Packaging
Fude Packaging’s 15+ years of food packaging export expertise includes deep understanding of the logistics chain that begins at our Shandong production facility and ends at a restaurant, retail shelf, or consumer table on the other side of the world — meaning we engineer our square salad containers not only for food containment and visual merchandising but for packing density per shipping carton, units per FCL, stacking stability in transit, and warehouse footprint per thousand units, delivering measurable logistics cost advantages that compound across every stage of the international supply chain. Our ISO 9001:2015-certified quality management system includes dimensional tolerance verification ensuring consistent square geometry, stacking interface alignment, and lid-to-base engagement across production runs — because a 0.5mm deviation that is invisible on a single unit becomes a compounding stacking error that prevents stable five-high assembly at scale. All containers carry independently SGS-verified compliance across EU EC 1935/2004, US FDA 21 CFR, Japan Food Sanitation Act, and Korea MFDS for both kraft base and PET lid components, with FSC-certified paper materials, and our 500+ million-piece annual capacity enables the large-volume production schedules that airline caterers, cloud kitchen networks, centralized kitchens, and event management companies require, coordinated by our 24/7 multilingual (English, Japanese, Korean, Arabic) account management team with proven experience managing containerized international shipments to all six target continents.
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