Birch Sap Industry
Application Scenarios & Customer Cases
Birch Sap Collection Bags & Traceability: One Bag, One Code from Forest to Consumer
QC Packaging has served the birch sap industry since 2020, when we delivered the sector's first customized collection bag. Years of continuous R&D have built a portfolio protected by four national patents, and today we supply professional solutions and supporting products to more than 50 birch sap collection and processing companies, holding a leading market share in collection bags.
From forest collection and low-temperature storage to consumer-facing traceability, we deliver a full-chain solution — patented collection bags, sterile storage bags and a traceability system — as the birch sap industry's collection-and-traceability solution provider.
The workhorse of forest collection: available in 330×450 mm and 360×450 mm, with a sealed self-closing structure and a matching collection needle to cut leakage and contamination during collection. Patent: sealed self-closing birch sap collection bag with collection needle (ZL 202422526573.X). Made with the Qihua-3 birch sap collection film.
330×450 mm, using sterile processing and a soft-plug gas barrier for collection scenarios with higher cleanliness requirements. Patent: sealed birch sap collection device (ZL 2024 2 0726594.3). Also made with the Qihua-3 film.
A dedicated film engineered for forest conditions: puncture-resistant and non-brittle at sub-zero temperatures. Both the Gen-2 and Gen-3 collection bags use it, solving bag breakage and sap loss at the material level.
2.5 L to 1000 L (25 L and 220 L are standard industrial sizes), with a dedicated ultra-pure, non-migrating inner layer that preserves the natural flavor of birch sap. Keeps freshness for 12+ months through storage and transport.
One bag, one code — full-chain traceability from collection to consumer: every collection bag carries a unique code from the factory; collection data travels with the material and connects to government supervision. Consumers scan the Sun Code on the package with WeChat to view traceability information.
Products & Specifications
| Product | Stage | Key Specifications |
|---|---|---|
| Gen-2 Sealed Self-Closing Collection Bag | Forest collection (main) | 330×450 / 360×450 mm; Qihua-3 film; with collection needle |
| Gen-3 Sterile Collection Bag | Forest collection (sterile) | 330×450 mm; soft-plug gas barrier; Qihua-3 film |
| Birch Sap Sterile Storage Bag | Processing / transport | 2.5 L–1000 L; dedicated inner layer; 12+ months freshness |
| "Birch Sap Trace" System | Collection + consumer | One bag, one code; WeChat mini-program + Sun Code; government supervision |
FAQ
What if bags break or leak during collection?
Most breakage comes from branch punctures and low-temperature embrittlement in the forest. The Qihua-3 film was engineered exactly for this — puncture-resistant and non-brittle below zero. Combined with the sealed structure of the Gen-2 / Gen-3 collection bags, it reduces losses at the point of collection.
Do the bags become brittle at sub-zero temperatures?
No. The Qihua-3 film is designed for low-temperature forest conditions and stays flexible below zero — the key difference from general-purpose packaging films.
How do I choose between collection bag and storage bag specifications?
For routine collection, use the Gen-2 sealed self-closing collection bag in 330×450 or 360×450 mm. For higher cleanliness with sterile collection processes, choose the Gen-3 sterile collection bag (330×450 mm). For storage, birch sap sterile storage bags are generally specified from 25 L to 1000 L depending on your processing and transport scale.
How do we roll out "Birch Sap Trace"? What do we need to do?
Three steps: (1) collect your raw material using QC Packaging collection bags; (2) scan the code at collection to record source data (mobile phone is enough); (3) we provide the Sun Code file and printing parameters — you print it on your consumer packaging and shoppers scan it with WeChat. Roll-out can be phased, gradually raising the share of traceable raw material.
What patents protect the collection technology?
Four granted patents form the collection technology moat: portable self-sealing sap bag (ZL 2020 2 0880003.X); sealed self-closing birch sap collection bag with collection needle (ZL 202422526573.X); sealed birch sap collection device (ZL 2024 2 0726594.3); and a tree sap collection structure (invention patent, CN 118844299 B).
