Component identity
List each accepted mushroom by agreed trade or species identity and define substitution rules.
China-based B2B supply of frozen vegetables, fruits and mushrooms

CHINA-BASED B2B SUPPLY
We supply IQF frozen mixed mushrooms for soups, sauces, prepared meals, foodservice and retail programs. Each blend is built around an approved component list and ratio, with separate controls for species or trade identity, cut, size, color, texture, broken material, packing and destination documents.
For a useful quotation: send the form or grade, application, quantity, pack, destination, document needs and timing.
Two “mixed mushroom” offers can contain different species, ratios, cuts and grades. The commercial reference should be a signed formula and representative sample, not a generic blend name.
List each accepted mushroom by agreed trade or species identity and define substitution rules.
Set the percentage basis, weighing tolerance and method for checking component balance.
Align whole, sliced, diced or strip components so one item does not dominate size, color or breakage.
Approve the blend after cooking for flavor balance, visual distribution, bite and portion yield.
STANDARDS & PROGRAMS
Tell us the standard, destination and customer requirement. We provide certification and production details with the product and quotation.










Certificates, registrations and organic documents are included with the quoted product and destination-market file.
Working directions include whole-component blends, sliced blends, diced blends and strip blends. Component list, ratio, cut dimensions and grade are developed for the buyer's application and confirmed in the final specification rather than offered as one universal recipe.





| Declared form | Size | Within size | Off-size |
|---|---|---|---|
| Whole Mix | shiitake 30%, oyster 25%, nameko 20%, boletus 15%, black fungus 10% | At least 90.0% by mass within the declared size | Maximum 10.0% by mass |
| Sliced Mix | 5–8 mm thickness; same declared ratio | At least 90.0% by mass within the declared size | Maximum 10.0% by mass |
| Diced Mix | 10 mm; same declared ratio | At least 90.0% by mass within the declared size | Maximum 10.0% by mass |
| Strip Mix | 5–10 × 30–50 mm; same declared ratio | At least 90.0% by mass within the declared size | Maximum 10.0% by mass |
no unit more than 20.0% below the lower limit or above the upper limit.
We coordinate component availability with suitable partner factory routes and flag any proposed identity, ratio or grade change before order approval. Repeat programs should retain a controlled formula version and sample reference.
| Decision field | What we confirm | Why it matters |
|---|---|---|
| Formula | Named components, percentage basis and substitution rule | Prevents silent composition changes |
| Component grade | Cut, size, color, stem or cap condition and defects | Keeps the blend visually and functionally balanced |
| Release check | Ratio tolerance, distribution, sensory result and foreign material | Creates an auditable blend-acceptance basis |
| Program inputs | Forecast, pack, destination, label and document needs | Supports component and route planning |
The specification should identify every component, percentage basis and tolerance, cut or size for each component, broken and off-size material, color and sensory direction, foreign material, chemistry, microbiology, labeling and agreed destination tests.
| Control | Quality limit | Method summary |
|---|---|---|
| Colour | Characteristic colour of the declared mushroom species; maximum 5.0% by mass materially darkened or discoloured. | Visual, sensory or mass-fraction inspection |
| Flavour and Odour | Clean, characteristic mixed mushrooms flavour and odour after cooking or thawing as relevant; no sour, fermented, musty, rancid or other foreign odour. | Visual, sensory or mass-fraction inspection |
| Texture and Maturity | Sound, clean and fleshy; at least 90.0% by mass within the declared maturity and form; no slimy, woody or water-soaked tissue. | Visual, sensory or mass-fraction inspection |
| Broken or Damaged | Maximum 10.0% by mass broken or mechanically damaged pieces. | Visual, sensory or mass-fraction inspection |
| Discoloration | Maximum 5.0% by mass materially discoloured units. | Visual, sensory or mass-fraction inspection |
| Surface Ice | Maximum 5.0% by mass loose surface ice and frost. | Frozen sample inspection at −18°C |
| Clumps | Maximum 5.0% by mass units remaining in clumps after one gentle manual separation at −18°C. | Frozen sample inspection at −18°C |
| Extraneous Matter | Maximum 0.10% by mass extraneous plant or mushroom matter. | Visual, sensory or mass-fraction inspection |
| Hazardous Foreign Material | 0 pieces of glass, hard plastic, stone, metal, wood or other hazardous foreign material in each 10 kg inspection sample. | Defined sample visual inspection |
| Decay, Mould and Insects | 0 mouldy, decayed or insect-infested units in each 10 kg inspection sample. | Defined sample visual inspection |
| Free-Flowing | Minimum 95.0% by mass free-flowing for IQF piece formats. | Frozen sample inspection at −18°C |
| Thawing Loss | Maximum 38.0% by mass after thawing for 24 hours at 4°C and draining for 2 minutes. | Controlled thaw-and-drain test |
| Metal Detection | Every packed unit passes a validated detector set at Fe 2.0 mm, non-Fe 2.5 mm and stainless steel 3.0 mm test-piece sensitivity. | Validated detector verification |
| Control | Quality limit | Method summary |
|---|---|---|
| Species Identity | Declared species only; 0 undeclared mushroom species in each 10 kg inspection sample. Morphology is checked for every lot; ITS DNA sequencing is required for initial supply-route qualification and every disputed lot. | Lot morphology review; ITS DNA sequencing |
| Cap or Ear Size | 10–60 mm declared component cap or ear size | Caliper or graduated sieve |
| Stem Length | Stem length maximum 20 mm | Caliper |
| Sulphur Dioxide | <10 mg/kg; no sulphur dioxide or sulphite added | Validated total SO₂ method |
| Food Additives | 0 added food additives | Ingredient and process-record review |
| Preservatives | 0 added preservatives | Ingredient and process-record review |
| Pesticide Residues | Every analyte at or below the destination-market MRL relevant to Mixed Mushrooms | Destination-market multiresidue method |
| Heavy Metals and Regulated Contaminants | Every analyte at or below the product-specific destination-market maximum level | Validated ICP-MS or destination-recognized method |
| Control | Quality limit | Method summary |
|---|---|---|
| Aerobic Plate Count | ≤500,000 CFU/g | ISO 4833-1 / FDA BAM Chapter 3 |
| Coliforms | ≤1,000 CFU/g | ISO 4832 / FDA BAM Chapter 4 |
| Escherichia coli | <10 CFU/g | ISO 16649-2 / FDA BAM Chapter 4 |
| Staphylococcus aureus | <10 CFU/g | ISO 6888-1 / FDA BAM Chapter 12 |
| Yeasts | ≤1,000 CFU/g | ISO 21527-1/2 |
| Moulds | ≤1,000 CFU/g | ISO 21527-1/2 |
| Salmonella | Not detected 25 g | ISO 6579-1 / FDA BAM Chapter 5 |
| Listeria monocytogenes | Not detected 25 g | ISO 11290-1 / FDA BAM Chapter 10 |
How the documents work: our master targets guide qualification and quotation. The signed specification defines your order, and the COA reports the identified production lot against the agreed test scope.
The approved route must keep component identity and lot references visible through preparation, freezing, weighing or blending, metal detection, packing and release. We confirm where and how the blend is assembled for the quoted program.

Declared species identified, sorted, cleaned, trimmed, cut to the declared form, hot-water blanched for 90–180 seconds at 90–98°C, rapidly cooled, individually quick frozen, graded, metal detected, packed and stored frozen.
These equipment photos show common frozen-food processing checkpoints. The quotation includes production capacity and the quality-control plan.Explore the processing-flow library →
We check product identity, crop condition and lot reference before processing. The image shows a key processing checkpoint; final line details are confirmed in the quotation.

The team follows the agreed form, size and handling requirement. The image shows a key processing checkpoint; final line details are confirmed in the quotation.

We align the freezing method and control plan with the product form, specification and order volume. The image shows a key processing checkpoint; final line details are confirmed in the quotation.

We connect release checks, packing and lot records to the purchase order. The image shows a key processing checkpoint; final line details are confirmed in the quotation.
Confirm product identity, origin direction, condition and lot-identification requirements.
Clean, sort and prepare the declared mixed mushrooms form and size.
Apply the confirmed treatment, freeze the product and check separation, condition and foreign material.
Verify packing, lot code, label, metal-detection control and agreed release records.
Bulk packs suit industrial soups, sauces and meal lines; foodservice and retail formats need added control of component distribution, fill weight, film, seal, artwork and label composition.

Application — updates the recommendation below
Packing family — updates the image and case options above
Pack construction: Food-grade PE liner and export carton; plain bag, adhesive label or printed bag; barcode and customized carton marks.
Loading plan: Pallet loading, floor loading or food-grade tote format as stated in the confirmed purchase order.
Mixed-mushroom approval should connect formula version, component identity, ratio, individual grades and cooked result to the approved sample. Any proposed substitution or ratio change requires buyer review.

Photograph supplied by XMG for buyer review. We confirm which facility, test scope and release record apply to the quoted product.



We confirm product, origin, process, certification scope, capacity and delivery timing before quotation.
We connect the confirmed form, size, tolerances, packing and release criteria to the purchase order.
Where required, we organize a representative sample and keep the approval reference with the order.
We coordinate the agreed COA, inspection and laboratory records for the identified production lot.
We confirm pack construction, label or artwork, carton marks, coding and loading basis.
Our commercial team keeps product, document, cold-chain and shipment milestones connected.
Our commercial team keeps the approved specification, release records, packing details and shipment file aligned from order confirmation through dispatch.
Send the desired components, ratio, cut, application, quantity, pack, label, destination and tests. We will prepare availability and return the formula, sample, facility-document and lot-evidence confirmation points.
Build the document request your team actually needs. Select one or several items. Your choices will travel with the product inquiry.
The order file includes certificate, production, product, lot and destination-market documents.
Your qualification request is ready to carry into the inquiry.
Tell us the application, form or size, pack, quantity, destination and timing.
We provide the specification, sample plan, certification scope, packing and quotation basis for review.
Your written approvals and purchase order lock the production, document and shipment plan.

A blend name or product photo cannot verify its weight ratios. Learn how to define the percentage basis, retain uncertain fragments, compare individual bag results and connect the approved mushroom formula to sample and lot records for repeat supply.
Read the guide →Use these answers to prepare your product inquiry. The quotation states product availability, specification, packing and delivery timing.
Yes. Share the accepted components, target ratios, cuts, application and price or sensory priorities. We will prepare a workable route and identify any open points before sampling.
We do not treat one recipe as universal. The component list, percentage basis, tolerance and substitution rule are approved for each program.
The specification should define whether ratios are based on input weights or another agreed method, plus tolerances, sampling and release records.
They can, but the geometry should be approved for distribution, cooking and portioning. Component-specific cut and broken limits help avoid an unbalanced result.
List accepted identities and state that unapproved substitutions are not permitted. Any proposed change should be disclosed with supporting information before buyer approval.
Yes. A cooked application trial is valuable for flavor balance, color, texture, component distribution and yield. Use the approved result as part of the commercial reference.
We coordinate bulk, foodservice and retail formats plus film, artwork, composition statement, coding, cases and loading with the order.
Send the formula or desired components, ratios, cuts, application, quantity, pack, destination, label needs, tests, documents and timing.
Your selected form, size, packing and application stay attached as you review or change them.
IQF Frozen Mixed Mushrooms
Only your work email is required. Your product and selected specifications are attached automatically.
We protect your information and use it only to respond to your inquiry.