Preserved whole mushroom in SO2

Preserved whole mushroom in SO2 Brief introduction of preserved whole mushroom in SO2 in drums Preserved whole mushroom in SO₂ (sulphur dioxide) are a semi-processed form of edible mushrooms, mainly champignon (Agaricus bisporus), that are treated with sulphur dioxide solution to maintain their n...

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Brief introduction of preserved whole mushroom in SO2 in drums

Preserved whole mushroom in SO₂ (sulphur dioxide) are a semi-processed form of edible mushrooms, mainly champignon (Agaricus bisporus), that are treated with sulphur dioxide solution to maintain their natural color, texture, and freshness during storage and transport. This preservation method helps to prevent microbial growth and enzymatic browning, keeping the mushrooms suitable for further processing.

These preserved whole mushroom in SO2 are typically packed in 50kgs plastic drums and supplied to food processors as a raw material. Before final consumption, the mushrooms undergo a desalting and de-sulphuring process, and are then canned, bottled, or used in various prepared foods.

Parameters of the preserved whole mushroom in SO2 in drums

Type	White champignon mushroom	Part	Whole mushroom
Item Name	Preserved whole mushroom in SO2 in drums	Storage condition	Normal temperature
Ingredients	White champignon mushroom, water, salt, sulphur dioxide	Package	43kgs/drum, 370 drums for 1*20’F
Instruction for use	Not directly edible, requires further processing	Shelf life	2 years
Place of Origin	Fujian, China	Supply time	Through the whole year
Preservation Process	in SO2	Color	Natural yellow
Shape	Good shape	MOQ	1*20’F
Item size	1.5-6cm, depends on what you need	Certification	Physanitary certification, sanitary certification

Features of Mushroom in SO₂ (in Drums)

Natural Appearance – The whole mushrooms are preserved in their original shape, giving them an attractive and uniform look that is ideal for further processing.

Color Retention – Sulphur dioxide helps the mushrooms stay bright and white, preventing discoloration during long storage periods.

Bulk Packaging – Usually packed in strong, food-grade drums (48–50 kg or as required), convenient for large-scale food manufacturers.

Stable Quality – The preservation process ensures that mushrooms remain firm, fresh-looking, and consistent until ready for use.

Industrial Raw Material – Specifically produced for re-processing into canned mushrooms, pickled mushrooms, or other mushroom products.

Safe Storage & Transportation – The SO₂ solution protects the mushrooms from microbial spoilage, making them suitable for long-distance export.

FAQ – Mushrooms in SO₂ in Drums

What are mushrooms in SO₂?
Mushrooms in SO₂ are fresh mushrooms preserved in sulfur dioxide solution and packed in large drums. This method protects the mushrooms from spoilage, browning, and microbial growth, allowing them to be stored and transported over long distances.
Why use SO₂ for preservation?
SO₂ is highly effective in maintaining the mushrooms’ natural color, texture, and quality. It also provides an extended shelf life, which is essential for international trade and bulk storage.
How are they used after import?
Before consumption or retail packing, mushrooms are washed and treated to remove residual SO₂. After that, they can be processed into brined mushrooms, pickled products, canned goods, or even dried and powdered.
Are mushrooms in SO₂ safe?
Yes. The SO₂ acts as a preservative during bulk storage, but it is removed or reduced to safe levels during processing. Final products meet international food safety standards before reaching consumers.
What are the packaging specifications?
They are usually supplied in large plastic or iron drums (commonly 50 kg–200 kg net weight per drum). Packaging can be customized based on buyers’ requirements.
Who typically uses mushrooms in SO₂?
These products are mainly intended for food manufacturers, importers, and repacking companies rather than direct household use. They serve as a semi-finished raw material for further processing.
What are the advantages of buying in drums?
Bulk drums offer cost efficiency, reduced transportation expenses, longer storage stability, and flexibility for repacking into different retail formats.