Grain Quality Testing (Protein, Oil, etc.) Checklist
Ensure top-quality grain harvests! Our comprehensive Grain Quality Testing checklist (Protein, Oil, Moisture, and more) helps farmers and agronomists accurately assess crop value & optimize yields. Download now for a detailed guide to agricultural best practices.
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Sample Preparation
Procedures for obtaining and preparing the grain sample for analysis. Ensuring a representative sample is crucial for accurate results.
Lot/Batch Identification
Sample Weight (g)
Number of Subsamples Taken
Sampling Method
Description of Sample Appearance (Color, Odor, Foreign Matter)
Photograph of Sample (Optional)
Notes on Sample Handling or Potential Contamination
Moisture Content
Determining the percentage of water in the grain. Impacts other quality parameters and storage viability.
Moisture Content (%)
Moisture Determination Method
Method Specification (If 'Other' selected above)
Drying Temperature (°C)
Drying Time (hours)
Date of Moisture Determination
Time of Moisture Determination
Equipment/Instrument Used
Protein Content
Assessing the percentage of protein, a key indicator of nutritional value and baking quality.
Crude Protein (%)
Moisture Correction Factor
Nitrogen Conversion Factor (if applicable)
Protein Measurement Method
Any unusual observations during the analysis?
Attach Protein Analysis Report (if available)
Protein Quality Assessment (if applicable)
Oil Content
Measuring the percentage of oil, important for oilseed crops and overall nutritional value.
Oil Content (%)
Moisture Content (Used for Calculation)
Extraction Method Used
Any Anomalies Observed During Extraction
Spectroscopy Data (if applicable)
Replicate 1 Oil Content (%)
Replicate 2 Oil Content (%)
Replicate 3 Oil Content (%)
Starch Content & Quality
Evaluating the amount and type of starch, particularly relevant for grains used for human consumption or animal feed.
Total Starch Content (%)
Amylose Content (%)
Amylopectin Content (%)
Starch Damage (Visual Inspection)
Microscopic Observations of Starch Granules
Gelatinization Temperature (°C)
Pasting Viscosity (cP)
Peak Viscosity (cP)
Fiber Content
Analyzing the levels of fiber, contributing to nutritional assessment.
Total Dietary Fiber (g/100g)
Soluble Fiber (g/100g)
Insoluble Fiber (g/100g)
Fiber Analysis Method Used
Details if 'Other' Method Selected
Lab ID/Sample Code
Test Weight & Bulk Density
Measuring the weight of a known volume of grain and its density, indicators of grain size and overall quality.
Test Weight (lbs/bushel)
Bulk Density (lbs/cubic foot)
Measurement Method Used
Notes/Observations (e.g., grain condition, equipment used)
Sample Volume (bushels)
Grain Variety/Type
Falling Number
Determining the rate at which a starch suspension falls, reflecting the level of enzymatic degradation – particularly relevant for wheat.
Falling Number Result (seconds)
Temperature During Measurement (°C)
Measurement Time (minutes)
Method Used
If 'Other' Method Used, Describe
Acceptable Range?
Comments/Observations (if outside acceptable range)
Gluten Content & Quality (Wheat)
Specifically for wheat, assessing gluten content and its properties, crucial for baking performance.
Gluten Content (%)
Wet Gluten Content (g/100g)
Gluten Index (Falling Number related)
Gluten Strength (Farfarinograph/Mixograph)
Gluten Color (Visual)
Gluten Texture Description (e.g., elasticity, stickiness)
Gluten Particle Size Distribution
Any unusual observations during gluten testing?
Germination Rate (Seed Grain)
If grain is being evaluated for seed purposes, determine the germination percentage.
Number of Seeds Tested
Number of Seeds Germinated
Germination Rate (%)
Date of Germination Test Started
Date of Germination Test Completed
Observations/Notes (e.g., seed vigor, uniformity, unusual growth)
Germination Medium Used
Seed Variety
Pest & Disease Assessment
Visual inspection for signs of insect infestation or fungal diseases. Impacts grain quality and safety.
Visual Evidence of Insects (e.g., live insects, larvae, frass)?
Detailed Description of Insect Activity (if present)
Photograph of Insect Infestation (if present)
Evidence of Fungal Disease (e.g., discoloration, moldy odor)?
Detailed Description of Disease Symptoms (if present)
Estimated Percentage of Grain Affected by Disease (if present)
Suspected Disease Type (if present – based on visual assessment)
Date of Pest/Disease Observation
Location of Grain Bin/Area where Observation was Made
Mycotoxin Screening
Testing for the presence of mycotoxins (toxins produced by fungi), a critical safety concern.
Mycotoxin Panel Tested
Specify 'Other' Mycotoxins (if selected)
Aflatoxin B1 Result (µg/kg)
Deoxynivalenol (DON) Result (µg/kg)
Fumonisin B1 & B2 Result (µg/kg)
Result Interpretation
Certificate of Analysis (COA)
Date of Analysis
Data Recording & Reporting
Properly documenting all results, observations, and any deviations from standard procedures.
Sample ID
Date of Analysis
Time of Analysis
Moisture Content (%)
Protein Content (%)
Oil Content (%)
Observations/Notes
Equipment Used (e.g., NIR, Kjeldahl)
Analyst
Calibration Curve/Data Sheet
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