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.

This Template was installed 4 times.

Sample Preparation

1 of 13

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

2 of 13

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

3 of 13

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

4 of 13

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

5 of 13

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

6 of 13

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

7 of 13

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

8 of 13

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)

9 of 13

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)

10 of 13

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

11 of 13

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

12 of 13

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

13 of 13

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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