Chinese white onion powder is made from onion flakes, before mill, onion flakes will go through magnet, color sorter, flow away onion hull, and before packing, onion powder will go through magnet and heavy metal detector, the parameter for heavy metal detector is stainless steel 1.2mm, ferrous is 0.8mm, non-ferrous is 1.0mm.
For packing, the normal package is 12.5kgs/bag, 2bags/carton, we also can pack as your request, like 1kg, 2kg, 5lbs, 5kgs, 10kgs, 50lbs, or sack bags, or use pallet when shipped.