At the receiving end, a pistachio load is not yet a uniform lot. It can arrive with outer skin, plant debris, moisture, and a mix of sizes and maturity stages—the unpolished version of the nut a consumer will eventually recognize. OFM’s postharvest overview describes that incoming variation as the starting point for the work.
The Spanish machinery company calls the period after harvest a race against time. That is a useful way to understand the job: the fruit has to move through several connected steps before it becomes a stable, saleable product, rather than sitting as an undifferentiated pile of harvest.
A Line, Not a Single Machine
In OFM’s simplified sequence, the crop goes through reception, cleaning, peeling, separation, drying, selection, weighing, and packaging. The order matters. A processor is managing a flow from the point where field loads arrive to the point where finished product is prepared for sale.
The first operations deal with what came in from the orchard: cleaning removes unwanted material, peeling takes off the outer skin, and separation sorts the crop. Drying comes before selection and packing. OFM’s outline of the processing stages presents them as linked tasks, not independent pieces of equipment.
That distinction shows up in the machinery discussion, too. In a separate description of an integrated peeling line, OFM lists feeding, peel removal, residue evacuation, washing, separation of empty nuts, hygiene, and the connection to drying. The detail is less glamorous than a machine’s nameplate, but it points to the practical work between one station and the next.
The Receiving Door Sets the Pace
The source describes reception as a place to absorb the harvest peak without creating a bottleneck. That is a capacity problem before it is a packaging problem: a line can only keep its sequence moving if incoming loads can be accepted and passed along.
For California pistachio operations, the useful question is not simply which machine handles a particular stage. It is whether orchard dispatch, processor intake, and the handoff into drying have been planned together. A processor’s general process diagram is not a California facility specification, and OFM does not give throughput rates or operating targets for individual handlers.
Before the first loads leave the orchard, growers and managers can settle the practical decision with their handler: what receiving plan and processing window will apply to their crop? That conversation is where the harvest schedule meets the realities of the line.