Fresh-market, processing, sets and processed onions are separate products
Fresh dry-bulb onions are marketed by type or variety, color, maturity, cure, grade and size. Onions for processing use a separate USDA grade framework, while onion sets are planting material governed by their own size and quality requirements. Green onions, shallots, dehydrated flakes or powder, frozen onions and canned onions add different species or form, processing, composition and packaging requirements. Atlas keeps product type and intended use attached before comparing production, grade, price or trade evidence.