“Cashew calculator” means different things depending on which problem you’re trying to solve. A trader checking a shipment wants to know expected kernel yield. A processor planning a new line wants to know how many cutting machines to buy. A factory manager already running a line wants to know whether the shelling stage is performing the way it should. These are three separate calculations, and treating them as one generic tool tends to produce a number that doesn’t actually answer the question you had.
Rather than build a single calculator that tries to do all three badly, OUTTURN keeps them as three purpose-built tools, each matched to the decision it supports. This page explains what each one measures and points you to the real calculator for each.
Raw Cashew Yield Calculator
Yield estimation from raw cashew nut (RCN) starts with a simple idea: a fixed amount of RCN produces a predictable range of finished white kernel, expressed in the trade as Kernel Output Ratio, or KOR. The catch is that a single “RCN in, kernel out” number tells you almost nothing about where yield is being lost. Mass disappears at five distinct stages between raw nut and finished kernel — steaming, shelling, drying, peeling, and re-heating — and a processor who only weighs the two endpoints has no way to tell a steaming problem from a cutting problem.
A proper yield calculation tracks all five stage losses separately, in grams lost per kilogram of starting RCN, and checks that they sum back to close to 1,000 g/kg alongside your finished kernel weight. That mass-balance check is what separates a real, measured KOR from a rough estimate. Our full breakdown of this method, along with the free interactive tool, lives at the True KOR Calculator — use it if you want a genuine stage-by-stage figure from your own production floor rather than a single blended guess.
Processing Capacity Calculator
Capacity planning is a different question entirely: not “what yield should I expect” but “how much cutting equipment do I need to hit a target daily volume.” This one gets harder than it looks because raw cashew nut doesn’t arrive as a uniform product — a single day’s intake splits across kernel grades (A+, A, B, C, D) in proportions that shift by origin, and each grade needs its own throughput allocation since blade gaps and cutting-head counts are set per grade, not for a line as a whole.
Sizing a line correctly means starting from daily RCN volume and working hours, applying your origin’s typical grade split, adding an operational buffer for real-world downtime and grading variance, and converting the buffered per-grade figures into a head count using a realistic kg/hr-per-head benchmark. Do this step by step and you get a defensible machine count; skip the grade breakdown and you get a line that’s overbuilt on one grade and bottlenecked on another from week one. The full seven-step method, plus the interactive sizing tool, is at How to Design a Cashew Cutting Line.
Shelling Efficiency Calculator
Once a line is running, the useful question shifts again: is the shelling stage itself performing well, independent of everything else happening on the floor. Shelling efficiency is really a narrower slice of the same mass-balance thinking behind KOR — instead of tracking all five processing stages, you isolate the cutting stage’s own loss figure (shell and CNSL removed per kg of RCN, plus visible kernel damage or breakage) and watch how it moves over time.
Because shelling is consistently the single largest source of mass loss in the whole process, it’s also the stage where equipment condition shows up fastest. A cutting machine with sharp, well-aligned blades produces a clean split with minimal fines and minimal breakage; a worn or misaligned one drives both figures up, and that shows up directly as a lower KOR even if every other stage is unchanged. If you’re trying to isolate shelling performance specifically, the stage-by-stage entry fields in the True KOR Calculator above are the right starting point — record only your shelling-stage loss and finished kernel weight over a run of batches and track the trend.
Related Products
If your calculations point to a capacity gap or an underperforming cutting stage, the next step is usually equipment rather than more measurement. OUTTURN’s complete automatic cashew cutting line covers the full material flow from RCN infeed through cutting, sieving, and CNSL separation for processors sizing a new or expanded line. For a breakdown of what drives cost across our head-count range and the automatic line, see Cashew Cutting Machine Price, which explains pricing factors rather than a single fixed figure, since configuration and shipping terms vary by order.