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Q&AUnited States · European Union

Sensory Testing Regulations in the US and EU: 10 Questions Answered

Sensory testing regulations in the US and EU are not one rulebook. Neither market prescribes a sensory test for food in general; the duty to test comes from food safety, truthful labelling and advertising rules, while ISO standards set how a good test is run. These ten answers show where the two markets agree and where they differ, so one study can be designed once and framed for each.
VMDr Vikram Mehta
PhD, FRSC · Head of Regulatory Affairs & Nutrition Science, Food Research Lab
✓ Technically reviewed by FRL Editorial · Last reviewed: 10 November 2026 · Next review: May 2027
Posted
10 November 2026
Last checked
10 November 2026
Reading time
9 min
Sources
27
Plan sensory evidence for both marketsRead the official text ↗
At a glance
  • No US or EU law prescribes a sensory test for food in general; duties come from safety, labelling and advertising rules.[6][7][9]
  • ISO sensory standards are voluntary and used in both markets; ASTM Committee E18 standards are also widely used in the US.[2][10]
  • US advertising claims need a reasonable basis held before the claim is made; EU claims must not mislead, and comparative claims must be verifiable.[1][15][16]
  • EU date marking is mandatory for most prepacked foods; US federal law requires a date only on infant formula.[7][19]
  • Ingredient routes differ: GRAS or food additive in the US; Union list and novel food authorisation in the EU.[5][4][21]
Key numbers
Questions answered
10
Core ISO sensory standards (Table 2)
6
EU date-marking types
2 (“use by”, “best before”)
US federal date requirement
Infant formula only
EU novel food cut-off
15 May 1997

Key terms used in this Q&A

Teams selling food in both markets keep asking the same three things: is sensory testing required, which standards count, and what evidence does a taste claim need? The answers below take each in turn, with the rule or standard behind every point. This page is educational, not legal advice.

Table 1. Terms used in this Q&A

Term Meaning Source
Substantiation Evidence an advertiser holds before making a claim FTC policy statement[1]
Sensory profile Quantified description of a product’s attributes by trained assessors ISO 13299[2]
Hedonic test Consumer test of how much people like a product ISO 11136[3]
Union list EU list of flavouring substances authorised for use in food Regulation 872/2012[4]
GRAS “Generally recognised as safe”: a US route for a substance to be used in food without food additive approval 21 CFR 170.30[5]

1. Is sensory testing required by law for food in the US and EU?

Short answer: no single law requires a sensory test as such. The duty is to sell food that is safe and fit to eat, and to describe it truthfully; sensory evidence is often how you show both.

In the EU, food may not be placed on the market if it is unsafe, which includes food unfit for human consumption, and its labelling and presentation must not mislead.[6] Food information must be accurate, clear and easy to understand.[7] In the US, food is adulterated if it consists of a filthy, putrid or decomposed substance or is otherwise unfit for food, and misbranded if its labelling is false or misleading in any particular.[8][9]

So the trigger is the claim or the risk, not a set test. Our guide to the sensory evaluation of food and our pillar on designing a sensory study explain how to choose the right method once you know what you need to prove.

2. Which sensory evaluation standards apply in the US and EU?

Short answer: ISO sensory standards are used in both markets, and ASTM Committee E18 publishes sensory standards widely used in the US. All are voluntary: they govern how a test is run, not which claims are lawful.[10]

Table 2. Core ISO standards for food sensory work

Purpose Standard Use
Sensory profile ISO 13299:2016[2] Trained-panel description
General methodology ISO 6658:2017[11] Choosing and designing tests
Assessor selection ISO 8586:2023[12] Screening and training assessors
Hedonic testing ISO 11136:2014[3] Consumer liking in a controlled area
Triangle test ISO 4120:2021[13] Difference and similarity testing
Claim substantiation ISO 20784:2021[14] Evidence for sensory and consumer claims

Following a standard does not make a claim lawful, but it makes the evidence easier to defend if a regulator, retailer or competitor challenges it.

3. How is a taste or preference claim substantiated?

Short answer: with evidence that matches the exact claim, held before the claim is made. In the US, the FTC expects a reasonable basis for objective advertising claims; in the EU, claims must not mislead the average consumer.[1][15]

A claim such as “tastes better than Brand X” is comparative. In the EU, comparative advertising is allowed only if it objectively compares material, relevant, verifiable and representative features, among other conditions.[16] On the label itself, US and EU food law also bars false or misleading statements.[9][7]

ISO 20784 gives guidance on designing the evidence: the right consumers, the right comparison product, blind presentation and a pre-set analysis.[14] A consumer preference study only supports a preference claim among the population it tested, so recruit in the market where the claim will run.

For a worked study design with a benchmark and decision rule, see our flavour validation worked example.

4. Does the FDA regulate sensory testing?

Short answer: not as a method. The FDA does not prescribe how a company runs a sensory panel for its own foods. Its labelling, flavour and adulteration rules create the need for sensory evidence instead.

For example, if a label or picture suggests a characterising flavour, such as strawberry or chilli, the FDA’s flavour labelling rule decides how the name must describe it, including whether the flavour is natural or artificial.[17] A sensory check confirms the product actually delivers the flavour the name promises. And because decomposed or unfit food is adulterated, an off-odour found in quality checks is a regulatory matter, not just a quality one.[8] Our article on off-odour and taint recalls shows how that plays out.

5. Is an accredited laboratory required?

Short answer: not for a company’s own sensory evidence in general. In the EU, accreditation to EN ISO/IEC 17025 is required for laboratories designated to carry out official controls, not for every test a food business runs.[18]

Retailers and buyers may still ask for an accredited or audited laboratory, and an accredited partner makes evidence easier to defend. Whoever runs the test, record how assessors were recruited and screened, the method, the serving plan and the analysis, so the work can be audited later.[12][11]

6. How do shelf life and date marking fit the regulations?

Short answer: in the EU, date marking is a mandatory particular for most prepacked foods: a “use by” date for microbiologically highly perishable food and a “best before” date otherwise, with listed exemptions. In the US, federal regulations require a date only on infant formula.[7][19]

Neither market tells you how to set the date; the food business is responsible for it. Shelf-life studies usually combine microbiological, chemical and sensory end-points, and for a “best before” date the sensory end-point, the point at which quality is no longer acceptable, often decides the date. In the US, some states have their own dating rules, so check the states you sell in.[19]

Our guide to real-time and accelerated shelf-life testing explains how sensory end-points are built into a shelf-life study.

7. Where do US and EU sensory testing regulations diverge?

Short answer: the test methods are the same; the rules that frame the result are not. One study design can serve both markets, but claim rules, flavour wording, date marking and ingredient routes differ, so findings must be framed separately for each.

Table 3. US and EU expectations compared

Topic United States European Union
Claim evidence Reasonable basis held before the claim (FTC)[1] Not misleading; comparative claims must be verifiable[15][16]
Flavour wording 21 CFR 101.22[17] Regulation 1334/2008[20]
Date marking Federal requirement for infant formula only[19] “Use by” or “best before” on most prepacked foods[7]
Ingredient route GRAS or food additive approval[5] Union list; novel food authorisation[4][21]

The flavour wording row is where most labels go wrong: our comparison of natural flavour labelling under FDA and EU rules sets the two side by side, and our explainer on what natural flavors are under FDA rules covers the US definition.

Venn diagram of sensory evidence rules: US only (FTC substantiation, 21 CFR 101.22, FDA misbranding, ASTM methods), EU only (Regulations 1169/2011, 1924/2006, 1334/2008, unfair practices law) and shared (ISO sensory standards, truthful evidence-based claims)
Figure 1. Shared and market-specific frameworks for sensory evidence and food labelling in the US and EU.

8. Do trend botanicals such as adaptogens need approval?

Short answer: they can. In the EU, a food or ingredient not used for human consumption to a significant degree in the EU before 15 May 1997 is a novel food and needs authorisation before sale.[21] In the US, a substance added to food must be GRAS or an approved food additive.[5]

Any health claim made for the botanical is a separate question: in the EU, health claims must comply with the nutrition and health claims regulation, which allows authorised claims and claims covered by its transitional measures.[22] Check the ingredient’s status before concept testing, so consumers are not asked to rate a product that cannot be sold. Our flavour trends 2026 analysis covers which botanicals are trending.

9. Can a chilli-infused honey be called “hot honey”?

Short answer: not as its legal name on its own. In the EU, honey sold as honey may not have any food ingredient added, so a honey with chilli needs a name that describes the product accurately, such as “honey with chilli”.[23][7]

In the US, a non-standardised food needs a common or usual name that describes its basic nature and characterising properties.[24] FDA guidance on honey says a honey with an added flavour should carry a name that describes it, giving “raspberry-flavored honey” as an example, with every ingredient listed.[25] The same logic points to a descriptive name for a chilli-infused honey, with “hot honey” used as a descriptor alongside it.

Test the name with consumers as well: a name is also a claim, and consumers must understand what they are buying.

10. Who decides that a new flavouring is safe?

Short answer: in the EU, flavouring substances are evaluated by EFSA, and only those on the Union list may be used in food.[20][4] In the US, synthetic flavouring substances permitted as food additives are listed in 21 CFR 172.515, and many natural flavour sources are listed as GRAS.[26][27]

Other flavour substances reach the US market through GRAS conclusions or food additive approval.[5] Sensory testing does not decide safety in either market: a flavour must be legal to use before it is tested on consumers.

For brands & formulators

Most sensory questions we see from brands selling in both markets are not about whether to test but about framing: one study, two sets of claim rules. FRL’s sensory research and analytics team designs a single sensory study for the US and EU, with separate consumer groups in each market, and runs or arranges the panel and consumer testing through accredited partner laboratories and local fieldwork partners.

Our regulatory and scientific research team reviews the label name, flavour wording and claim evidence for each market, and our new food product development team reformulates where the sensory results say it should. FRL works from Chennai, India. Contact our team with your product, markets and the claims you want to make.

In this series

What to do now
  • ✓Write down every claim the product will make, on pack and in advertising, before designing the study.
  • ✓Check ingredient status (GRAS, Union list, novel food) before any consumer testing.
  • ✓Use one ISO-based design with separate consumer groups in the US and the EU.
  • ✓Keep an audit trail: recruitment, screening, method, serving plan and analysis.
  • ✓Get the label name and flavour wording reviewed for each market by our regulatory and scientific research team.
Your next step
Selling a new flavour in the US and EU?
1Share the product, target markets and the claims you plan to make.
2FRL designs one sensory study with separate consumer groups for each market.
3Get results framed for US and EU claim and labelling rules.
Plan sensory evidence for both marketsTalk to our team
Questions brands ask
Are ISO sensory standards legally binding in the US or EU?

No. ISO sensory standards such as ISO 13299, ISO 11136 and ISO 4120 are voluntary. No US or EU food law requires them for a company’s own testing. They matter because they are recognised good practice, which makes sensory evidence easier to defend if a regulator, retailer or competitor challenges a claim.

Does EFSA approve taste or flavour claims?

No. EFSA gives scientific opinions on health claims and evaluates the safety of flavouring substances, but it does not approve taste claims such as “creamier” or “tastes better”. In the EU, those claims fall under the general rules that food information and commercial practices must not mislead consumers.

Can a consumer preference claim from a US study be used in the EU?

Usually not on its own. A preference result describes the consumers who were tested, so an EU claim is best supported by EU consumers. Design one study, recruit separate groups in each market and analyse them separately. The same protocol then supports claim wording in both markets.

Does a best-before date need sensory shelf-life data?

The law does not name a method, but the food business is responsible for the date it sets. For many shelf-stable foods, quality, not safety, ends shelf life first, so a sensory end-point, the point at which the product is no longer acceptable, is often what sets the best-before date.

Do I need FDA approval before running a consumer taste test?

No FDA approval is needed to run a consumer taste test of a lawful food. What matters is that every ingredient is permitted, as GRAS or an approved food additive, and that the product is safe to serve. Check ingredient status before testing, especially for novel botanicals or new flavouring substances.

Can FRL run sensory studies for US and EU launches?

Yes. FRL works from Chennai, India, and designs one sensory study for both markets, with separate consumer groups in each. Panel and consumer testing is run or arranged through accredited partner laboratories and local fieldwork partners, and FRL’s regulatory team frames the results for each market’s claim and labelling rules.

References
  1. Federal Trade Commission. (1984). FTC policy statement regarding advertising substantiation. https://www.ftc.gov/legal-library/browse/ftc-policy-statement-regarding-advertising-substantiation (cited for the requirement to hold a reasonable basis before making an objective advertising claim).
  2. International Organization for Standardization. (2016). ISO 13299:2016 Sensory analysis: Methodology: General guidance for establishing a sensory profile. ISO. https://www.iso.org/standard/58042.html (cited for the sensory profile).
  3. International Organization for Standardization. (2014). ISO 11136:2014 Sensory analysis: Methodology: General guidance for conducting hedonic tests with consumers in a controlled area (amended 2020). ISO. https://www.iso.org/standard/50125.html (cited for consumer hedonic tests).
  4. Commission Implementing Regulation (EU) No 872/2012 of 1 October 2012 adopting the list of flavouring substances. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32012R0872 (cited for the Union list of flavouring substances).
  5. 21 CFR 170.30, Eligibility for classification as generally recognized as safe (GRAS). eCFR. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-170/subpart-B/section-170.30 (cited for the GRAS route).
  6. Regulation (EC) No 178/2002 of the European Parliament and of the Council of 28 January 2002 laying down the general principles and requirements of food law. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32002R0178 (cited for Article 14, unsafe and unfit food, and Article 16, presentation that does not mislead).
  7. Regulation (EU) No 1169/2011 of the European Parliament and of the Council of 25 October 2011 on the provision of food information to consumers. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32011R1169 (cited for Article 7 fair information practices, Article 9 mandatory particulars, Article 17 name of the food, Article 24 and Annex X date marking).
  8. Federal Food, Drug, and Cosmetic Act § 402, 21 U.S.C. § 342 (adulterated food). Legal Information Institute, Cornell Law School. https://www.law.cornell.edu/uscode/text/21/342 (cited for food that is filthy, putrid, decomposed or otherwise unfit for food).
  9. Federal Food, Drug, and Cosmetic Act § 403, 21 U.S.C. § 343 (misbranded food). Legal Information Institute, Cornell Law School. https://www.law.cornell.edu/uscode/text/21/343 (cited for labelling that is false or misleading in any particular).
  10. ASTM International. (n.d.). Committee E18 on Sensory Evaluation. https://www.astm.org/committee-e18 (cited for ASTM sensory evaluation standards and guides).
  11. International Organization for Standardization. (2017). ISO 6658:2017 Sensory analysis: Methodology: General guidance. ISO. https://www.iso.org/standard/65519.html (cited for general sensory test design).
  12. International Organization for Standardization. (2023). ISO 8586:2023 Sensory analysis: Selection and training of sensory assessors. ISO. https://www.iso.org/standard/76667.html (cited for assessor screening and training).
  13. International Organization for Standardization. (2021). ISO 4120:2021 Sensory analysis: Methodology: Triangle test. ISO. https://www.iso.org/standard/76666.html (cited for difference testing).
  14. International Organization for Standardization. (2021). ISO 20784:2021 Sensory analysis: Guidance on substantiation for sensory and consumer product claims. ISO. https://www.iso.org/standard/69080.html (cited for the evidence behind sensory and consumer claims).
  15. Directive 2005/29/EC of the European Parliament and of the Council of 11 May 2005 concerning unfair business-to-consumer commercial practices in the internal market. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32005L0029 (cited for misleading commercial practices).
  16. Directive 2006/114/EC of the European Parliament and of the Council of 12 December 2006 concerning misleading and comparative advertising. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32006L0114 (cited for Article 4, conditions for permitted comparative advertising).
  17. 21 CFR 101.22, Foods; labeling of spices, flavorings, colorings and chemical preservatives. eCFR. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-101/subpart-B/section-101.22 (cited for US flavour labelling and characterising flavours).
  18. Regulation (EU) 2017/625 of the European Parliament and of the Council of 15 March 2017 on official controls. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32017R0625 (cited for Article 37, accreditation of official laboratories to EN ISO/IEC 17025).
  19. U.S. Department of Agriculture, Food Safety and Inspection Service. (n.d.). Food product dating. https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/food-product-dating (cited for the absence of a federal product-dating requirement except for infant formula).
  20. Regulation (EC) No 1334/2008 of the European Parliament and of the Council of 16 December 2008 on flavourings. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32008R1334 (cited for EU flavouring rules, the Union list and “natural” flavouring labelling).
  21. Regulation (EU) 2015/2283 of the European Parliament and of the Council of 25 November 2015 on novel foods. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32015R2283 (cited for the 15 May 1997 novel food cut-off).
  22. Regulation (EC) No 1924/2006 of the European Parliament and of the Council of 20 December 2006 on nutrition and health claims made on foods. EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32006R1924 (cited for authorised health claims and transitional measures).
  23. Council Directive 2001/110/EC of 20 December 2001 relating to honey (as amended). EUR-Lex. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32001L0110 (cited for Annex II: no food ingredient may be added to honey).
  24. 21 CFR 102.5, General principles (common or usual names for nonstandardized foods). eCFR. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-102/subpart-A/section-102.5 (cited for names that describe the basic nature and characterising properties of a food).
  25. U.S. Food and Drug Administration. (2018). Proper labeling of honey and honey products: Guidance for industry. https://www.fda.gov/media/110846/download (cited for naming honey with an added flavour, such as “raspberry-flavored honey”).
  26. 21 CFR 172.515, Synthetic flavoring substances and adjuvants. eCFR. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-172/subpart-F/section-172.515 (cited for the US list of synthetic flavouring substances permitted as food additives).
  27. 21 CFR 182.20, Essential oils, oleoresins (solvent-free), and natural extractives (including distillates). eCFR. https://www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-182/subpart-A/section-182.20 (cited for natural flavouring sources listed as GRAS).

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