The phrase "unprocessed form" means that something is in its original or natural state, and has not undergone any changes or modifications. Full definition
Alcoa World Alumina Corporation has locked in a contract to directly export 400,000 tonnes of bauxite from the Huntly mine in Western Australia, as the company continues a move towards shipping of the commodity in unprocessed form. (businessnews.com.au)
As we've already mentioned, eating foods in their raw, unprocessed form requires extra work from the digestive system and actually decreases the amount of calories our bodies absorb from food. (fitnessandpower.com)