May 2026: Essential Updates in Food Technology Standards

Food Technology is evolving rapidly, and the May 2026 publication cycle brings a significant wave of new standards that impact product quality, safety, and regulatory compliance. Professionals across the food value chain must stay updated to maintain competitiveness and ensure the highest safety benchmarks. This article—Part 1 of a 3-part series—explores five critical new standards, offering a technical yet accessible look at their scope, requirements, and business impact.

Overview

In the global food sector, standards play an indispensable role in safeguarding quality, consistency, and public health. Food businesses, laboratories, and procurement officers universally reference these published documents to validate methods, comply with regulatory frameworks, and differentiate their products in the market.

This article demystifies the latest Food Technology standards published in May 2026. Readers will gain expert-level insight into developments in gluten content analysis, sensory testing, molecular detection of genetically modified organisms (GMOs), and the monitoring of veterinary drug residues in animal products.

Whether you manage food safety programs, operate analytical laboratories, or are responsible for compliance and procurement, these updates will influence your workflows and strategic decisions.

Detailed Standards Coverage

ISO 21415-2:2026 - Gluten Content by Mechanical Means

Wheat and wheat flour — Gluten content — Part 2: Determination of wet gluten and gluten index by mechanical means

This essential update delivers a precise methodology for determining wet gluten content and the gluten index of wheat flours and milled wheat using mechanical extraction. Unlike manual extraction, which can yield slightly higher results due to dough resting, this method provides consistency and supports industrial workflows demanding automation and scale.

The standard covers:

• Preparation and washing of dough samples with sodium chloride solution
• Use of automatic gluten separation equipment and centrifugation
• Procedures for determining the gluten index—a crucial indicator of the strength and quality of gluten

Key requirements include:

• Use of specific sieves (88 µm polyester, 840 µm polyamide) for sample preparation
• Centrifugation protocols to isolate and quantify wet gluten
• Calculations for repeatability, reproducibility, and reporting

Industries including milling, baking, quality assurance, and laboratory testing must comply with these requirements to ensure product specification, consistency, and international trade acceptance. Notably, fidelity requirements have been updated based on new interlaboratory ring-test data, ensuring results are globally harmonized.

Key highlights:

• Mechanized, reproducible gluten analysis methods
• Updated precision and repeatability criteria
• Valid for both flour and ground wheat samples

Access the full standard:View ISO 21415-2:2026 on iTeh Standards

EN ISO 10399:2026 - Sensory Analysis Duo-Trio Test (CEN)

Sensory analysis - Methodology - Duo-trio test (ISO 10399:2026)

This European adoption of the international standard codifies the duo-trio test—a critical forced-choice methodology for determining perceptible sensory differences or similarities between products. Widely used in new product development, reformulation, and quality monitoring, the duo-trio test enables statistically sound assessments even before the underlying differences are fully characterized.

The standard describes:

• When to use difference vs. similarity testing
• Two principal techniques: constant-reference (for familiar products) and balanced-reference (for unfamiliar products)
• Key rules for assessor selection, test conditions, and result interpretation

This methodology is a foundational tool for food technologists, R&D teams, and sensory scientists who must validate claims or monitor changes due to ingredients, processing, packaging, or storage. Its practical ease-of-use compared to the triangle test makes it especially appropriate for routine sensory evaluations.

Key highlights:

• Statistically robust, user-friendly sensory discrimination method
• Guidance for selecting and monitoring trained assessors
• Effective for change detection and equivalence/similarity assertions

Access the full standard:View EN ISO 10399:2026 on iTeh Standards

ISO/TS 21569-10:2026 - Detection of Genetically Modified Salmon

Horizontal methods for molecular biomarker analysis — Methods of analysis for the detection of genetically modified organisms and derived products — Part 10: Construct- and event-specific detection methods for genetically modified salmon expressing CS-GHc2 growth hormone

As genetically modified (GM) foods become more prevalent, reliable detection is imperative for compliance, labeling, and consumer confidence. This technical specification outlines two specialized real-time PCR methods to detect the presence of AquAdvantage Atlantic salmon carrying the CS-GHc2 growth hormone construct.

The methods target:

• The border between the growth hormone gene from Chinook salmon and antifreeze terminator (construct-specific)
• The border between Atlantic salmon DNA and antifreeze promoter (event-specific)

Applicable matrices include foodstuffs and, where relevant, feedstuffs. Laboratories following this document must ensure adequate DNA extraction and prepare samples as specified for both routine screening and confirmatory analysis. Method validation includes checks for sensitivity, specificity, and interlaboratory repeatability.

Key highlights:

• State-of-the-art PCR protocols for GM salmon detection
• Event- and construct-specific approaches for unambiguous identification
• Performance criteria and validation guidance for labs

Access the full standard:View ISO/TS 21569-10:2026 on iTeh Standards

ISO 10399:2026 - Sensory Analysis — Duo-Trio Test

Sensory analysis — Methodology — Duo-trio test

This concurrent ISO release harmonizes with the EN publication above and reiterates the duo-trio test's international scope. The standard details test design, assessor requirements, analytical procedures, and interpretation for forced-choice sensory evaluation in the food sector.

Described are:

• Test triad setup (one reference, two coded samples per assessor)
• Randomization and blinding protocols to ensure unbiased results
• Recommendations for test environment, statistical analysis using both the Thurstonian and guessing models, and reporting

Quality control managers and product development teams worldwide must integrate this protocol into their sensory evaluation programs to support compliance, product claims, and market launches.

Key highlights:

• Global harmonization of the duo-trio sensory method
• Enhanced guidance on statistical treatment and assessor qualification
• Suitable for both sensory difference and similarity testing

Access the full standard:View ISO 10399:2026 on iTeh Standards

ISO 23851:2026 - Marker Residues of Nicarbazin in Chicken and Eggs

Chicken tissue and eggs — Determination of marker residues of nicarbazin — Liquid chromatography tandem mass spectrometry method

This pioneering standard specifies a robust LC-MS/MS method for detecting and quantifying nicarbazin residues (specifically the marker 4,4-dinitrocarbanilide) in chicken tissues (muscle, liver, kidney) and eggs. Nicarbazin is widely used as a veterinary drug in poultry, but strict residue controls are in place due to potential human health risks.

The document covers:

• Extraction and purification procedures using acetonitrile and n-hexane or solid phase extraction
• LC-MS/MS chromatographic conditions and internal standard quantification
• Criteria for identification, precision, limit of quantification, and reporting

This standard is essential for food industry laboratories, official inspection bodies, and producers seeking compliance with international residue tolerances and trade requirements.

Key highlights:

• Validated analytical method for regulatory and quality control
• Guidance on sample preparation for various poultry matrices
• Precision, sensitivity, and reporting requirements recognized worldwide

Access the full standard:View ISO 23851:2026 on iTeh Standards

Industry Impact & Compliance

Adopting these newly published Food Technology standards is essential for safeguarding product quality, consumer safety, and regulatory compliance. Immediate benefits include:

• Streamlined laboratory operations with reproducible, harmonized methods
• Simplified compliance with European and international regulations
• Enhanced ability to export goods without technical barriers
• Minimized risk of non-conformity leading to recalls or trade disputes

Organizations should assess their current processes and plan for the adoption and internal training required to implement these updated methodologies. Detailed reporting, statistical validity, and appropriate record-keeping are pivotal for demonstrating compliance during inspections or audits. Official adoption timelines may vary by regulatory jurisdiction, but early implementation is best practice.

Failure to comply or update methods exposes businesses to market risk, reputational damage, and regulatory sanctions. Timely adoption also positions organizations as industry leaders in quality and safety.

Technical Insights

The covered standards converge on several technical priorities for modern food production and safety laboratories:

• Method Validation: Each standard emphasizes validation (repeatability, reproducibility, sensitivity, specificity), ensuring reliability in daily analytical practice.
• State-of-the-Art Instrumentation: The reliance on advanced technologies—automatic gluten analyzers, LC-MS/MS, real-time PCR—means that labs must invest in appropriate equipment and staff training.
• Sampling and Preparation: Accurate, reproducible sample preparation is critical across all standards, from gluten testing in flour to DNA extraction for GM organism detection and residue analysis in animal products.
• Robust Statistical Analysis: Especially highlighted in sensory testing standards, understanding and correctly applying statistical thresholds (alpha and beta risk, power calculations) is vital for credible results.
• Data Reporting and Traceability: Comprehensive data recording, as detailed in each standard, underpins traceability and defensibility in compliance scenarios.

Implementation best practices:

1. Invest in standardized equipment and maintain rigorous calibration and quality control schedules.
2. Facilitate continuous staff training on technical protocols and regulatory developments.
3. Establish SOPs (Standard Operating Procedures) aligning with the latest standards for seamless audits and consistency.
4. Collaborate with third-party labs or certification bodies if in-house capacity is limited.

Testing and Certification:

• Accredited laboratories should seek updates to their scopes to reference the latest standards.
• Certification and proficiency testing in line with these new methodologies will help maintain international recognition.

Conclusion & Next Steps

The May 2026 release of these five standards marks a pivotal advancement in Food Technology—strengthening the analytic backbone for food safety, quality assurance, and regulatory compliance. Food industry professionals, laboratory managers, procurement specialists, and quality officers should initiate gap analyses, revise SOPs, and schedule staff training to embed these requirements into daily operations.

Key takeaways:

• Mechanized, validated methodologies boost confidence in analytical results
• Sensory and molecular biomarker analysis standards unlock robust new avenues for product development and safety monitoring
• Early adoption positions businesses for leadership and minimizes compliance risks

Next steps for organizations:

• Review and align laboratory protocols with the new standards
• Train staff and update equipment as necessary
• Regularly consult iTeh Standards for the latest updates and future parts of this comprehensive series

Stay proactive—explore the full text of these standards and ensure your food technology operations remain ahead of regulatory curves and industry trends.