SO₂ Whole Mushroom in Plastic Drums – Detailed Product Introduction
SO2 whole mushroom in plastic drums are preserved mushroom raw materials developed for processors who require intact mushroom shape, long ambient stability, and controlled color retention prior to secondary processing.
Freshly harvested white mushrooms are selected for uniformity and firmness, then stabilized using a regulated sulfur dioxide treatment that effectively inhibits enzymatic browning and microbial growth.
This preservation format allows whole mushrooms to be stored and transported over long distances while maintaining their structural integrity and processing performance.

| Item | Specification |
|---|---|
| Product Name | SO2 whole mushroom in plastic drums |
| Botanical Name | Agaricus bisporus |
| Form | Whole |
| Maturity | Closed cap |
| Color (after rinsing) | White to light cream |
| Odor | Normal mushroom aroma, no off-odor |
| Texture | Firm, elastic, intact |
| Preservative | Sulfur Dioxide (SO₂) |
| SO₂ Residue | Controlled, within importing country limits |
| Brine Medium | Water with regulated additives |
| Foreign Matter | None |
| Shelf Life | 18–24 months (unopened) |
| Storage Condition | Cool, dry, ambient storage |
| Packaging | Food-grade HDPE plastic drums with PE liner |
| Net Weight | As per contract |
| Country of Origin | China |
Notes for Processors
SO2 whole mushroom in plastic drums must be rinsed and desulfured before use
SO₂ levels are further reduced during blanching or cooking
SO2 whole mushroom in plastic drums are suitable for slicing, canning, freezing, or retort processing

Raw Mushroom Criteria for the SO2 whole mushroom in plastic drums
Harvested at closed-cap stage to maintain compact structure
Smooth cap surface with short, clean stems
Free from disease, excessive opening, or mechanical damage
Processed shortly after harvest to limit oxidation
SO₂ Preservation Principle for the SO2 whole mushroom in plastic drums
SO₂ interacts with oxidizing enzymes on mushroom surfaces
Significantly delays discoloration during storage
Maintains light, uniform appearance under ambient conditions
Residual SO₂ is removable during rinsing and thermal processing

Plastic Drum Packaging Advantages for the SO2 whole mushroom in plastic drums
Food-grade HDPE plastic drums
Corrosion-resistant compared with metal drums
Lightweight and easier to handle during loading
Tight-seal lids to prevent leakage and contamination
Storage & Transportation
Designed for ambient storage in dry, shaded warehouses
SO2 whole mushroom in plastic drums are Suitable for long sea shipments
Stackable drums optimize container utilization
Clear batch coding for traceability
Storage & Transit Conditions
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Temperature: Ambient, cool and shaded environment recommended
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Humidity: Avoid excessive moisture exposure
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Ventilation: Normal container ventilation sufficient
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Sunlight: Direct sunlight should be avoided during storage
Handling & Safety Notes
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Do not roll drums during loading or unloading
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Avoid excessive stacking pressure
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Secure drums with air bags or dunnage to prevent shifting
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Inspect drum seals before container closing
Packaging Unit for Shipment
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Drum Type: Food-grade HDPE plastic drum
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Inner Liner: Sealed PE bag to prevent leakage
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Closure: Tight-lock lid with tamper evidence
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Labeling: Product name, batch number, production date, net weight
Industrial Applications for the SO2 whole mushroom in plastic drums
Canned whole or cut mushroom products
Frozen mushroom processing after desalting
Ready-meal and sauce manufacturing
Further preserved or marinated mushroom products
Shelf-Life Impact During Logistics
Long shelf life supports long sea freight transit
Stable SO₂ preservation ensures quality retention
FIFO (First In, First Out) recommended for warehouse management
Key Advantages Across Applications
Uniform size improves process efficiency
Stable color after rinsing and cooking
Long shelf life simplifies supply planning
Cost-effective alternative to fresh mushrooms
FAQ – SO₂ Whole Champignon Mushroom in Plastic Drums
Q1: What is the main purpose of using SO₂ for whole mushrooms?
A: SO₂ prevents enzymatic browning and slows microbial growth, helping whole mushrooms retain a light appearance and stable quality during long-term storage and transport.
Q2: Are the mushrooms already cooked or blanched?
A: No. They are preserved but raw. Further processing such as rinsing, blanching, slicing, or cooking is required before use.
Q3: Why are plastic drums used instead of metal drums?
A: Plastic drums are corrosion-resistant, lighter, and more suitable for SO₂ solutions, reducing the risk of rust and improving handling safety.
Q4: How can SO₂ residue be reduced before processing?
A: Residual SO₂ can be effectively lowered through multiple rinses, soaking, and subsequent heat treatment during cooking or blanching.
Q5: Will the mushrooms keep their whole shape after storage?
A: Yes. Whole mushrooms are selected at the closed-cap stage and preserved to maintain structural integrity, provided proper storage and handling are followed.








