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Dehydrated Vegetables

Xinghua Hongsheng Food is a dehydrated vegetables supplier working with seasoning houses, instant food producers, sauce manufacturers and distributors. Three automatic air-drying lines run alongside our freeze-drying plant in Jiangsu, Chine, supported by a 6,000 mu planting base.

Onion, garlic, spinach, shallot and shiitake are sized, washed and dried to a controlled moisture so pungency and colour stay stable through storage. Mesh size and cut are matched to your blend, from flakes for visible pieces to 100 mesh powder for seasoning.

AD Drying · Custom Mesh · Bulk

Dehydrated Vegetables in Bulk: Onion, Garlic, Spinach and More

Air-dried vegetables in flakes, minced, granules and powder, produced on three automatic AD lines with AI colour sorting for consistent pungency and colour.

Specifications at a glance

FormFlakes, minced, chopped, granules, powder
Mesh size8 to 100 mesh for granules and powders
Moisture6 to 8% typical for air-dried vegetables
Conditionnement20 / 25 kg double PE-lined kraft bags or cartons, palletised
Shelf life12 to 24 months unopened, cool and dry storage
MOQFlexible per item, mixed containers available
ComplianceISO 9001, ISO 22000, HACCP, HALAL, FDA-registered facility, COA per batch

Applications and industries we serve

  • Seasoning and spice blends
  • Instant noodle sachets
  • Bouillon, stock and sauces
  • Snack seasoning
  • Ready meals and retort packs
  • Canned products
  • Pet food
  • Food service

How we process it, step by step

  1. Raw material intake

    Fresh onion, garlic, carrot and spinach arrive from contracted growers, are weighed and sampled, and the pesticide panel is released before production starts.

  2. Washing and peeling

    Three-stage washing removes soil and debris; onions and garlic are peeled mechanically and finished by hand to remove damaged cloves.

  3. Slicing and flaking

    Product is cut on rotary or belt slicers to the agreed thickness - 3-5 mm slices for onion, 8-10 mm flakes for garlic - then spread evenly on drying trays.

  4. Hot air drying

    Multi-stage tunnel dryers run 55-70 C for 8-14 hours, ramping temperature down as moisture falls so the surface does not case-harden.

  5. Tempering and milling

    Dried product tempers to equalise moisture between pieces, then is milled to granules or powder on request.

  6. Metal detection and packing

    Every lot passes metal detection and X-ray before packing into PE-lined cartons with a batch COA.

Grades, cut sizes and best-fit uses

GradeSpecificationTypical use
Onion flakes8-15 mm, moisture 6% maxSoups, sauces, ready meals, burger seasoning
Onion granules40-80 mesh, 3-5 mmSeasoning blends, sausage, snack coating
Onion powder80-100 meshBouillon, marinades, snack seasoning
Garlic granules8-16 meshSauce, seasoning, meat processing
Carrot / spinach flakes5-10 mmSoup, instant noodles, pasta fillings

Cut size and colour are matched to your approved sample; tolerances are written into the specification sheet before production.

Quality control: the limits we work to

Moisture≤ 8% (onion and garlic ≤ 6%)
Water activity (Aw)≤ 0.60
Particle / cut sizeFlakes 5-15 mm, granules 40-80 mesh
Total plate count< 10,000 CFU/g (typical limit, batch COA confirms)
Coliforms< 10 CFU/g
Yeast and mould< 100 CFU/g
SalmonellaNegative in 25 g
Heavy metalsPb < 0.5 mg/kg, Cd < 0.2 mg/kg
Foreign matterNone; X-ray and metal detection on every lot

Values above are the standard specification for this range. The certificate of analysis issued with each lot states the measured result, and we will quote tighter limits where your own HACCP plan requires them.

Dehydrated or freeze dried: which to specify

Air drying is cost-efficient and gives the stronger, more concentrated aroma that seasoning houses rely on. Freeze drying keeps shape, colour and a lighter texture, which suits visible pieces in cup noodles or ready meals.

We run both technologies in the same facility, so the same vegetable can be quoted in either format without a second supplier, one specification and one shipment.

Custom mesh, blends and private label

Custom mesh size, pungency target, blend ratio, packaging and labelling are available, including private label bags and cartons with your artwork, barcode and lot coding.

Raw material is inspected on arrival, sorted with AI colour sorters and passed through metal detection before packing, with moisture, microbiology and residue limits tested per batch.

Conditionnement, MOQ and lead time

Inner packingFood-grade PE bag, nitrogen flush on request
Outer packing10 / 20 / 25 kg export carton with liner, or retail-ready pouch
PalletEuro or 1100 x 1100 mm pallet, shrink-wrapped, 1,000-1,200 kg per pallet
MOQ1,000 kg per SKU
Lead time15-20 days after confirmation
Loading portQingdao / Shanghai
Shelf life12-18 months

What actually drives the price

  • Raw material year: onion and garlic prices swing with the harvest, and off-season stock carries a storage premium.
  • Mesh size: granules and powder require extra milling and sieving, so they cost more than flakes.
  • Moisture target: 6% onion dries longer than 8% and is priced accordingly.
  • Sterilisation: steam sterilised product for ready-to-eat applications carries a premium over standard food-grade.

Quotes are built line by line, so you can see which choice moves the number before you commit.

How it compares with the alternatives

AttributeDehydrated (air dried)Freeze driedSpray dried powder
Cost per kiloLowestHighestMedium
Flavour strengthConcentrated, cooked notesFresh, delicateSweet, flat
Rehydration15-30 minutes2-4 minutesInstant
Best forSoups, sauces, seasoningSnacks, premium blendsBeverage, instant soup base

Five checks before you place a purchase order

  • Ask for a flake sample from the exact production line that will run your order - not a generic sample from stock.
  • Match the mesh size against your own process: too fine and it dusts, too coarse and it will not disperse evenly.
  • Request the COA and allergen statement for the lot you will receive, and keep the retained sample in your own file.
  • Confirm the packing format and pallet height before booking freight; carton dimensions decide your container utilisation.
  • Agree the acceptance criteria in writing, including colour tolerance and defect limits, so an incoming inspection has a reference.

Frequently asked questions

What is the difference between flakes, minced and granules?
Flakes are the largest cut and are used where visible pieces are wanted; minced is a mid-size cut for sauces and fillings; granules and powders are specified by mesh size for seasoning blends and dry mixes.
Do you supply both dehydrated and freeze dried onion and garlic?
Oui. Both technologies run in the same facility, so you can source the same vegetable in either format with one specification and one shipment.
How do you control pungency in onion and garlic?
By fixing the raw material source, drying curve and cut size, then verifying each batch against the approved sample before release.
Can you consolidate several items in one container?
Oui. Mixed containers with palletised cartons are standard for distributors and seasoning houses ordering multiple items.
Is sulphite used in your dehydrated vegetables?
Our standard range is produced without sulphite fumigation. If a specific item requires treatment for your market, it is declared on the specification and the label.
Why is dehydrated onion cheaper than freeze dried onion?
Air drying removes water with heated air in a tunnel, which is far cheaper per kilo than freezing and sublimating under vacuum. The trade-off is colour and aroma: dehydrated onion is warmer and more cooked in flavour, freeze dried onion tastes closer to fresh.
Do you offer steam sterilised dehydrated vegetables?
Oui. Steam sterilisation is available for products going into ready-to-eat applications, with the microbiological result stated on the COA for each lot.
What is the typical shelf life of dehydrated vegetables?
12 to 18 months in unopened, PE-lined cartons kept below 25 C. Onion and garlic powder are more hygroscopic than flakes, so we recommend nitrogen flushing for long sea freight.

Request bulk pricing for dehydrated vegetables

Send your target specification, annual volume and packaging format. We reply with a quotation, sample plan and production schedule, usually within one business day.

Get a free quote

Why Food Manufacturers Choose Hongsheng

why food manufacturers choose hongsheng

Stable Raw Material Supply

Supported by our 400-hectare planting base, ensuring year-round availability and full traceability.

Advanced Processing Technology

Equipped with AI sorting robots, infrared color sorters, X-ray inspection systems, and automated production lines.

Flexible OEM Solutions

Customized ingredients, particle sizes, conditionnement, and private-label services tailored to your market needs.

Global Export Experience

Serving customers across Europe, North America, Japan, Korea, Southeast Asia, and other international markets.

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Innovative Ingredient Solutions for Diverse Food Industries

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