Dried onion (dehydrated onion) is widely used as a raw material in food production. While fresh onion is preferred in culinary and catering applications, industrial-scale manufacturing relies heavily on dried onion due to its ease of storage, consistent quality, and long shelf life. This ingredient is classified as a spice.
Properties and specifications
Form: powder or granules of various particle sizes — from fine powder to coarse flakes, depending on the application.
Color: ranges from light yellow to dark brown, depending on the growing region, processing conditions, storage, and harvest year.
Aroma: pungent, spicy, characteristic of dried onion. The intensity varies with origin, processing method, and storage conditions.
Nutritional value per 100 g (according to regulatory standards): carbohydrates 47.8 g; vitamin B1 — 0.1 mg; B2 — 0.1 mg; PP (niacin) — 1.3 mg; C — 12.0 mg.
Dosage in food formulations
Typical usage rates for dried onion in industrial food production:
- Crackers, snacks, bread — 3–7% of the dough or coating weight.
- Sauces (culinary) — 1–5%.
The optimal dosage depends on the pungency of the specific onion batch, its organoleptic quality, and whether the production process includes stages that reduce flavor intensity — such as baking at high temperatures or interaction with other strong-flavored ingredients.
Shelf life and storage
Dried onion has a shelf life of approximately 1 year when stored properly, or as specified by the manufacturer’s documentation. It should be kept in a cool, dry place, protected from direct sunlight and moisture. The relevant standard for this raw material is GOST 7587-71.
Sourcing and logistics
The main producing countries for dried onion are Uzbekistan and India, both of which export large volumes to food manufacturers worldwide. Standard packaging is bags of 15, 20, or 40 kg net weight.