Views: 0 Author: Site Editor Publish Time: 2025-09-29 Origin: Site
Warmpack manufactures molded-fiber food trays from renewable sugarcane bagasse using highly automated, digitally controlled lines. The plant supports unlined and film-lined (PLA/PBS/PE) SKUs, with quality systems and international certifications that back food-contact safety and consistent performance.
Renewable fiber source, BPA-free by design, strong rigidity for stacking and transport, conservative hot-fill and microwave-reheat capability, freezer stability to typical foodservice requirements, industrial compostability paths where accepted, and customizable shapes and branding.
Warmpack sources sugarcane bagasse and prepares fiber slurries with controlled cleanliness, pH, and freeness to balance forming speed and wall integrity. White and natural (unbleached) colorways are available to fit brand aesthetics and labeling needs.
Uniform fiber dispersion, stable slurry consistency for even dewatering, and fiber length distribution tuned to minimize pinholes while maintaining crisp edges and smooth rims.
Wet-forming molds draw the slurry and extract water via vacuum. Matched hot-press tooling then densifies the part, locking fibers into a rigid structure with precise rim geometry, corner definition, and controlled wall thickness.
CNC-machined molds, mesh selection, and regular polishing reduce sticking and fiber tear-out, improving appearance and cycle stability across long runs.
De-water timing, press temperature and pressure windows, and release protocols are digitally logged to maintain dimensional stability, weight targets, and surface smoothness.
After demolding, trays are trimmed, edge-finished, and vacuum-cleaned to remove fine dust. Inline inspections check burrs, rim height, and stack-nest consistency to protect downstream sealing and lid fit.
Warmpack supports tasteful logos, pattern textures, and anti-slip micro-textures. Branding can be paired with sleeves, bands, or labels for retail sets.
For oily or long-hold menus, Warmpack offers film-lined trays that enhance oil and water barrier performance and enable tighter heat-seal windows. Films are selected for the target use case, sealing method, and end-of-life pathway.
Deep-fried or saucy dishes, delivery windows of 45–90 minutes, chilled cases with condensation risk, or programs requiring heat-seal automation and strong peel control.
Dry or moderately moist foods, short dine-in service windows, and oven or microwave reheat with minimal surface oil.
Trays pair with PET or PP lids, overwraps, and heat-seal films. Anti-fog display, venting patterns, and tab design are tuned for visibility and steam management. Peel strength and leak control are validated on representative menus.
Match rim profile and stiffness to the sealing equipment and film grade. For delivery use, verify vertical compression and vibration with filled samples to avoid corner weep or lid pop-off.
Warmpack runs incoming, in-process, and outgoing checks to secure stable performance across lots.
Caliper and weight targets, length/width/depth and rim-height tolerances, uniform color and surface, burr and pinhole inspection with light tests.
Stack compression and burst testing, drop and vibration simulations, knife/fork cut resistance, and single-hand carry tests with loaded trays.
Conservative hot-fill, microwave reheat at medium power in short cycles, short oven reheat on sheet pans, freezer stability around −18 °C, sensory neutrality, and overall/specific migration checks aligned to target markets.
Warmpack supports mainstream standards such as FDA food-contact, EU 1935/2004, LFGB, facility certifications like ISO and BRCGS, and sourcing credentials including FSC where applicable. Film-lined SKUs include laminate-material disclosure and migration reports. PFAS-related statements are provided as relevant to the specification.
Bagasse leverages an agricultural byproduct. Warmpack emphasizes energy and water management, slurry water recirculation, and fiber scrap recovery. Industrial compostability is supported for unlined trays where facilities accept; acceptance of film-lined trays depends on laminate type and local infrastructure.
Warmpack validates tray performance with actual recipes and routes. Typical guidance includes conservative hot-fill around 100 °C, microwave reheating at 50–70 percent power in short cycles, short oven reheats, and freezer storage to common foodservice ranges. Avoid direct flame or stovetop contact.
For very oily or high-sugar dishes, specify film-lined, use vented lids, control fill heights and headspace, and avoid long pools of hot oil on the surface.
Units are stacked with interleaf or bagging as needed, packed in labeled cartons with lot and date codes, and palletized for lane stability. Carton labels can include QR codes for traceability back to line parameters and material batches.
RFQ and application review, CAD and tooling proposal, prototype and pre-production pilots, line validation with your recipes, documentation handoff, and scale-up with agreed AQL plans. Warmpack supports artwork, emboss templates, and retail pack formats.
Lead times and MOQs vary by tray size, rim type, and whether film-lining or new tooling is required. Your sales engineer will align volumes and timelines to meet launch windows.
Single-well entrée trays for ready meals, elongated trays for sushi and eclairs, shallow deli and bakery display trays, and multi-compartment cafeteria or airline formats. Warmpack’s fresh food tray series (for example T1, T3, T024, T230, T7) covers common planograms.
Confirm target foods and hold times, unlined versus film-lined choice, sealing method and lid fit, temperature and reheat profile, migration and certificates, stacking and transport trials, artwork and branding, and pallet configuration for your DC network.
Use medium power in short cycles and vent lids.
Short oven reheats are fine; avoid deep baking or roasting.
Acceptance depends on laminate type and local facilities.
Warmpack can supply specifications and statements aligned to your selected SKU.
PET or PP lids and heat-seal films are available with anti-fog options.
Warmpack’s bagasse tray manufacturing combines renewable materials with precise forming, optional film-lining, robust QC, and sealing know-how. The result is a dependable, food-safe platform that scales from pilots to nationwide programs while aligning with modern sustainability goals.
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