ASTM D8400-21

Standard Guide for Assessing Spoilage of Hemp Seed Intended for Human Consumption

SIGNIFICANCE AND USE
3.1 This guide provides a method for rapid, visual, on-site assessment of spoilage of hemp seed that will assist in managing food quality and productivity while maintaining consumer safety. It can be augmented with a number of laboratory tests to determine spoilage.  
3.2 This guide provides a method to identify hemp seed samples that are likely to spoil by quantifying discolored (dark yellow or brown) dehulled seed. Samples from lots/batches that display more than 2 % discolored2 dehulled seed are generally considered to be compromised.  
3.3 Laboratories providing certificates of analysis can validate this spoilage test. Used in conjunction with a peroxide value (PV) and FFA content or other methods, results will help determine the acceptability of a lot/batch of seed. In addition, a trained panel can complete organoleptic testing, but this should be used in combination with other tests.  
3.3.1 It is recommended that where possible, test results taken from samples are reported with a calculated margin of error to ensure statistical significance or relevant results.  
3.4 Product wastage will be reduced when spoilage is identified early, and decisions to re-target other viable uses may help assess pricing, discounts, and salvageable seed.
SCOPE
1.1 This guide covers the recommended steps for a visual assessment of spoilage in hemp seed intended for human consumption. Additional recognized laboratory tests can be completed as necessary to augment this guide.  
1.2 This guide applies to plant breeders, hemp seed producers, storage facilities, laboratories, and processors. This guide does not apply to hemp seed intended for planting.  
1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Aug-2021
• ICS: 11.120.99 - Other standards related to pharmaceutics
• ICS: 65.020.20 - Plant growing
• Technical Committee: D37 - Cannabis
• Drafting Committee: D37.07 - Industrial Hemp

Overview

ASTM D8400-21: Standard Guide for Assessing Spoilage of Hemp Seed Intended for Human Consumption provides an essential visual and laboratory-guided method for evaluating the quality and safety of hemp seeds used in foods. Developed by ASTM International in line with World Trade Organization (WTO) guidelines, this standard helps industry stakeholders assess spoilage quickly and efficiently, supporting high food quality standards and regulatory compliance. Due to the high oil and omega fatty acid content in hemp seeds, rapid identification of spoilage is crucial to avoid product wastage and prevent unsaleable, compromised lots from entering the food supply.

Key Topics

• Visual Spoilage Assessment:
  The standard sets out a rapid, on-site method for evaluating hemp seed spoilage by visually identifying the percentage of discolored (dark yellow or brown) dehulled seed in representative samples. When more than 2% of the sampled seeds are discolored, the lot is generally considered compromised.

• Augmented Testing:
  While the focus is on fast, visual assessment, ASTM D8400-21 encourages use of additional laboratory tests - including peroxide value (PV) and free fatty acid (FFA) content analyses - to further validate findings. These tests quantify rancidity and help determine seed quality.

• Organoleptic Evaluation:
  A trained panel may conduct organoleptic (sensory) assessments examining flavor, odor, appearance, and texture. Organoleptic testing, when combined with visual and chemical tests, provides a comprehensive quality profile.

• Sampling and Reporting:
  Consistent sampling protocols using representative seed lots and clean equipment are mandatory. Results should be reported with calculated margins of error whenever feasible for better statistical relevance. Proper identification of sample date and lot number is also required.

Applications

ASTM D8400-21 is highly relevant to:

• Hemp Seed Producers and Processors:
  For routine quality assessment and lot acceptability decisions before processing or sale.
• Laboratories:
  To perform third-party validation and provide certificates of analysis combining visual and laboratory test results.
• Storage Facilities:
  For monitoring stock during storage and before distribution to prevent compromised product release.
• Plant Breeders:
  To ensure breeding lines produce seeds with consistent quality traits and meet commercial specifications.
• Food Safety and Regulatory Agencies:
  To standardize approaches in monitoring edible hemp seeds and enforcing food safety requirements.

Early detection and removal or repurposing of spoiled hemp seeds using this standard can significantly reduce product wastage, improve process flow, and provide clear data for business, pricing, and salvage decisions.

Related Standards

• ASTM D6858 (Standard Guide for Sampling and Testing of Industrial Hemp Across Production Chain) - governs general sampling and analysis methodology for industrial hemp.
• ASTM D8141 (Standard Practice for Determination of Moisture in Cannabis) - provides protocols for moisture analysis, relevant for seed storage and spoilage risk.
• Canadian Hemp Trade Alliance (CHTA) Standards/Grading Plan - referenced for color comparison and spoilage assessment methodology.
• ISO 17025 (General requirements for the competence of testing and calibration laboratories) - supports laboratory best practices for certifying results.

By referencing ASTM D8400-21 for hemp seed spoilage, organizations align with internationally recognized best practices in hemp food safety, ensuring both product quality and consumer protection.

Keywords: hemp seed spoilage, ASTM D8400-21, hemp seed visual assessment, food quality, peroxide value, free fatty acid, hemp seed testing, industrial hemp, hemp food standards, food safety.

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8400 − 21
Standard Guide for
Assessing Spoilage of Hemp Seed Intended for Human
Consumption
This standard is issued under the fixed designation D8400; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Hemp seed contains significant amounts of oil and omega fatty acids, and as a result is susceptible
to spoilage and rancidity. High-rancidity levels create an unpalatable taste and odor and can result in
unsaleableproduct.Onceinitiated,theseconditionscanquicklyspreadthroughoutaseedlot/batchand
mayrenderaloadorstoredlotunfitforhumanconsumption.Othermethodsoftestingincludeanalysis
of peroxide value and free fatty acid content, but the time needed for these results can hinder product
movement and lead to more spoilage. A timely and visual method to assess spoilage is described to
assist decision-making, product use, business transactions, and improved process flow.
1. Scope 2.1.1.1 Discussion—The terms heart, nut, and hulled hemp
seed are synonymous with dehulled hemp seed.
1.1 This guide covers the recommended steps for a visual
2.1.2 free fatty acids, FFA, n—amount of fatty acid in the
assessment of spoilage in hemp seed intended for human
consumption. Additional recognized laboratory tests can be sample that reacts with a chromogenous compound and de-
creases its color.
completed as necessary to augment this guide.
2.1.2.1 Discussion—The decreasing color is proportional to
1.2 This guide applies to plant breeders, hemp seed
the acid concentration of the sample expressed as percent of
producers, storage facilities, laboratories, and processors. This
oleic acid.
guide does not apply to hemp seed intended for planting.
2.1.3 hemp seed, n—intact achene (fruit) produced from a
1.3 Units—The values stated in SI units are to be regarded
hemp plant that is capable of normal germination.
as standard. No other units of measurement are included in this
2.1.3.1 Discussion—Primarily used for sowing to grow a
standard.
plant or for further processing, this is sometimes known as
1.4 This standard does not purport to address all of the
hemp grain.
safety concerns, if any, associated with its use. It is the
2.1.4 hemp, n—a Cannabis sativa L. plant, or any part of
responsibility of the user of this standard to establish appro-
that plant, in which the concentration of total delta-9 tetrahy-
priate safety, health, and environmental practices and deter-
drocannabinol (THC) in the flowering tops is equal to or less
mine the applicability of regulatory limitations prior to use.
than the regulated maximum level as established by authorities
1.5 This international standard was developed in accor-
having jurisdiction.
dance with internationally recognized principles on standard-
2.1.4.1 Discussion—The term hemp is synonymous with
ization established in the Decision on Principles for the
industrial hemp.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
2.1.5 organoleptic test, n—asubjectiveassessmentofflavor,
Barriers to Trade (TBT) Committee. odor, appearance, and texture of a food product using a trained
panel of experienced persons.
2. Terminology
2.1.5.1 Discussion—The exact method can vary depending
2.1 Definitions of Terms Specific to This Standard: on the product.
2.1.1 dehulled hemp seed, n—internal seed material of the
2.1.6 peroxide value, PV, n—a test capable of determining
hemp seed.
the milliequivalents of peroxide oxygen combined in a kilo-
gram of oil, measuring the amount of peroxide oxygen in 1 kg
This guide is under the jurisdiction ofASTM Committee D37 on Cannabis and
of fat or oil.
is the direct responsibility of Subcommittee D37.07 on Industrial Hemp.
2.1.7 visual spoilage test, n—theprocessofspreadingwhole
Current edition approved Sept. 1, 2021. Published September 2021. DOI:
10.1520/D8400-21. hemp seed on a precise 100-count test surface, crushing the
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D8400 − 21
seed, and exposing the internal condition and coloration to 5. Sampling
count discolored dehulled seed.
5.1 A prerequisite for consistent results includes the collec-
2.1.7.1 Discussion—A comparison of discolored dehulled
tion of representative samples of hemp seed and use of
hemp seed is completed using a standardized color code chart
noncontaminated equipment and tools.
(see Appendix X1).
5.2 Storage and transportation conditions of samples should
3. Significance and Use
be as close as possible to the same temperature and humidity
3.1 This guide provides a method for rapid, visual, on-site
levels of the crop represented. Use of airtight containers not
assessment of spoilage of hemp seed that will assist in easily adulterated by rodents, insects, chemicals, fecal material
managing food quality and productivity while maintaining
from birds, and other physical contaminants is recommended.
consumer safety. It can be augmented with a number of
laboratory tests to determine spoilage.
6. Procedure
3.2 This guide provides a method to identify hemp seed
6.1 Collect a representative sample of hemp seed to be
samples that are l
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