Understand the language around samples, dockage, cleaned grain, distinctly green seed, damage, heating, admixture, grades, and settlement without pretending a website can assign an official result.
The essential distinction
Dockage is removed. Grading factors are assessed on the cleaned sample.
That sequence sounds simple, but it changes how percentages should be read. The official procedure, representative portion, and factor definition remain essential at every step.
The lot journey
From a moving grain stream to a commercial result.
Each step has a different job. Keeping them in order separates a sample observation, grade, and settlement instead of treating them as the same thing.
01Identify the lot
Record the bin, truck, delivery, date, crop year, and other information that keeps the grain connected to its history.
02Collect a representative sample
Combine material taken across the grain stream, then mix and divide it without losing the identity of the original lot.
03Determine dockage
Use the prescribed procedure to separate removable material and establish the cleaned sample used for grading.
04Assess grading factors
Examine representative portions for the factors defined in the current official guide and record the applicable percentages.
05Assign the limiting grade
Compare results with the current table. The factor that first exceeds a tolerance can determine the grade outcome.
06Read the settlement
Keep grade, dockage, delivered weight, contract terms, premiums, discounts, fees, and payable quantity visible as separate lines.
Sample anatomy
One sample can produce several different numbers.
A defensible record names the material, the method, and the denominator beside every result.
The material collected to represent the grain lot before dockage is removed.
Dockage
Removable material determined through the prescribed dockage procedure.
Cleaned sample
The canola remaining after dockage determination and the basis for grade assessment.
Representative portion
A prescribed smaller portion used to assess a particular grading factor.
Retained sample
Identified material preserved where a later check, dispute, or official process may require it.
01A grade can only be as meaningful as the sample being examined.
A representative sample comes first
A truckload, bin, or grain lot is much larger and more variable than the portion used for testing. Sampling procedures are designed to collect material from across the grain stream so the final sample represents the lot as fairly as possible.
A convenient handful from the top of a truck or bin may be useful for curiosity, but it cannot establish an official result. Sample identity, collection, mixing, division, handling, and chain of custody all matter when the result has commercial consequences.
02Dockage is material that must and can be removed before the grain is assigned a grade.
Dockage and grade are different calculations
The official dockage procedure uses prescribed equipment and settings to separate removable material from canola. What is removed, returned, or handpicked depends on the procedure and the material in the sample.
After dockage is removed, the remaining grain is the cleaned or net sample. Percentages used for many grading factors are calculated against that cleaned sample, which is why a dockage percentage and a grading-factor percentage should not be casually combined.
03A green seed coat does not automatically mean a seed is assessed as distinctly green.
Distinctly green is determined inside the seed
For grading, seeds are crushed and examined. Distinctly green refers to the internal condition seen through the crushed seed assessment, while some varieties can have thin seed coats that make whole seeds look green without indicating the same internal chlorophyll condition.
This distinction is a good example of why photographs and unstandardized visual checks cannot replace the official method.
04Damage can include several conditions assessed under specific definitions and procedures.
Damage is a group, not one appearance
Weathering, sprouting, frost effects, rime, disease-related material, heating, and other physical or quality changes can enter the grading conversation in different ways. Some conditions contribute to total damage while others have their own factor or grade outcome.
The name of a field problem and the name of a grading factor are not always interchangeable. The official guide defines what counts in the sample.
05Heating is assessed through seed appearance and odour according to the official procedure.
Heated seed and odour require separate attention
Canola can be vulnerable to storage heating because small seed, oil content, moisture, temperature, and biological activity interact. In grading, heated seeds are evaluated using crushed-seed characteristics and, where present, heated odour.
Odour can also be a grade determinant even when it is not classified as heated or fireburnt. A sensory concern should not be reduced to a single colour observation.
06Conspicuous and inconspicuous admixture are separated because some material is easier to distinguish than others.
Admixture describes what remains with the canola
Other crop seeds, weed seeds, ergot, sclerotinia, stones, and additional foreign material can be assessed through dockage or grading procedures depending on what the material is and whether it remains after cleaning.
Inconspicuous admixture can require magnification because certain mustard or related seeds are not readily distinguished from canola by ordinary inspection.
07Suspected treated seed, chemical substances, or hazardous extraneous material require escalation.
Contamination is not an ordinary quality discount
The official guide distinguishes contaminated grain from ordinary dockage or damage. Suspected pesticide-coated seed, chemical residue, chemical odour, or hazardous material requires careful handling and the applicable official process.
A public website should not tell someone to taste, smell closely, or handle a suspicious sample. Safety and official reporting come first.
08No. 1, No. 2, No. 3, Sample, Rejected, and other outcomes arise from defined standards, not one universal quality score.
Grade names summarize several factors
A sample can meet one factor comfortably and be limited by another. Degree of soundness, damage, admixture, stones, odour, and other conditions can determine the final designation.
Tolerances can change, and some definitions are reviewed between crop years. Always use the current official table rather than a screenshot, old handout, or memorized number.
09Grade, dockage, weight, price, deductions, premiums, and contract terms answer different parts of settlement.
A delivery result belongs with its documents
A delivery statement may include the quantity received, grade, dockage, moisture or other quality information, pricing basis, fees, and contract references. Understanding the result means reading the complete document rather than focusing on one percentage.
Where a producer disagrees with an assessment, rights and procedures depend on the delivery setting, licence status, timing, retained sample, and current Canadian Grain Commission process.
10A percentage without a sample method, denominator, date, and definition can mislead.
Quality data should remain attached to method
Farm tools can help record observations and perform arithmetic, but they should not imitate official grading. The most useful digital record keeps the source sample, date, location, method, units, photographs, laboratory or inspector information, and document reference together.
That approach creates better farm records and better technology: transparent calculations, visible assumptions, and a clear boundary between self-checks and official results.