Airtight Sample Bag for Green Coffee Bean

The GrainGuard airtight sample bag for green coffee bean programs is made for sample movement between farms, mills, exporters, importers, and roasters. A high-strength PE pouch with a barrier layer and airtight single-track zipper helps reduce exposure to humid air, oxygen, dust, and external odors after filling. The sealed format supports sample integrity during courier transit and repeated review.

Green coffee trading depends on trust between the source lot and the sample evaluated by the buyer. A sealed pouch helps keep pre-shipment samples, offer samples, arrival checks, and retained lot references closer to original storage condition. The transparent front supports quick visual grading, while the green back helps reduce light exposure during storage.

A tear notch and heat-weld allowance above the zipper support longer sample holding or shipment where extra closure security is preferred. The resealable zipper allows cuppers to open, pour, and reclose the pouch without changing containers. Label space supports lot code, farm name, harvest period, moisture reading, and customer reference.

Product Parameter (Specification)

Four catalogue sizes cover routine sample quantities used in green coffee negotiation, quality control, and roaster evaluation. Capacity figures are approximate and can vary by bean density, moisture level, and filling method.

Heat sealing above the zipper is recommended for long-term storage and sample transport. The 2 cm weld area and tear notch support secure opening after welding, while the resealable zipper remains useful for repeat cupping after the welded section is removed.

Product Feature And Application

The GrainGuard airtight sample bag for green coffee bean handling is suited for exporters sending offer samples, importers checking arrivals, and roasters evaluating purchase lots. Bag-level sample protection helps reduce disputes caused by poorly sealed courier parcels, inconsistent storage containers, or unmarked sample packages.
Unlike ordinary plastic pouches, the GrainGuard sample bag combines a reusable zipper, barrier film, visual inspection window, and branding space. Sample rooms can organize small offer bags, larger approval parcels, and retained references in the same product family, reducing confusion across a busy cupping schedule.
• Maintains aroma, color, and visual condition during sample handling
• Airtight single-track zipper supports repeated opening and reclosing
• High-strength PE with barrier layer helps limit moisture and oxygen exposure
• Transparent front supports fast bean inspection before cupping
• Green back provides light protection for stored samples
• 2 cm weld allowance supports heat sealing for longer sample storage
• Tear notch allows controlled opening after welded closure
• Label area supports lot codes, farm names, buyer references, and QC records
• Four sizes cover 250 g offers through 2,500 g sample parcels
• Suitable for organic green coffee, specialty lots, type samples, and retained samples

Production Details

The GrainGuard airtight sample bag for green coffee bean supply is manufactured at our Qingdao production facility using high-strength PE with a barrier layer. Film processing, pouch conversion, zipper fitting, seam control, inspection, and packing are managed under one production system to support stable quality for international sample programs.
Each batch is checked for seam strength, zipper function, film consistency, and finished pouch appearance before shipment. Quality checks focus on closure performance and package cleanliness because coffee samples often move directly from export desks to buyer cupping tables, trade show meetings, and purchase evaluation rooms.
GrainGuard supports wholesale orders, OEM printing, private label layouts, mixed-size packing, and repeat supply programs for exporters, agents, importers, roasters, and packaging distributors. Factory-direct service helps buyers prepare branded sample systems for daily trading, seasonal offers, and long-term quality records.