Reviewed by Thomas B. · Last Updated September 22, 2026 · How we review
USDA honey grading (U.S. Grade A, B, and C) is a voluntary point system built almost entirely from four measurable factors — flavor and aroma, absence of defects, clarity, and moisture content — not floral source, region, or how “raw” the honey is. Those marketing claims sit completely outside the official grade printed on a jar, and most honey sold in the United States is never graded at all.
Key Takeaways
- USDA honey grades are a 100-point scoring system: Grade A needs a minimum of 90 points, Grade B needs 80, and Grade C needs 70.
- Grade A and B honey must test at or below 18.6% moisture; Grade C allows up to 20%.
- Grading is entirely voluntary. Producers pay per-pound inspection fees to use it, and the large majority of retail honey in the U.S. carries no official USDA grade mark at all.
- Color is tracked separately on the Pfund scale and is not part of the point score — a very dark honey can still score Grade A.
- USDA grading says nothing about purity, adulteration, or true floral or geographic origin; those require separate authenticity testing such as isotope-ratio mass spectrometry.
- The EU (20% baseline) and Codex Alimentarius (20% baseline, 23% for heather honey) set moisture ceilings that are close to, but not identical with, the U.S. figures.
Table of Contents
- What USDA Honey Grading Actually Measures
- The Four USDA Grades: A, B, C, and Substandard
- How the 100-Point Score Breaks Down
- Moisture Content: The Line Between Honey and a Fermentation Risk
- Why Almost No Honey on Store Shelves Is Actually USDA Graded
- The Pfund Color Scale Is a Different Measurement Than Grade
- How EU and Codex Standards Compare to the USDA System
- What Grading Does Not Tell You
- How to Read a Honey Label as a Shopper
- Frequently Asked Questions
What USDA Honey Grading Actually Measures
The United States Standards for Grades of Extracted Honey, published by the USDA’s Agricultural Marketing Service, define grading as a quality-scoring exercise, not a purity or safety certification. A trained grader (or a private lab working under a USDA agreement) evaluates a sample against four factors: flavor and aroma, absence of defects, clarity, and moisture content. Each factor gets a point allowance, the points are added up, and the total determines the grade. Nothing about floral source, geographic origin, or whether the honey is raw, filtered, or pasteurized enters that calculation — those are separate label claims governed by different rules, which is why two jars can carry the same USDA grade while differing completely in style and processing.
The Four USDA Grades: A, B, C, and Substandard
The standard defines four outcomes based on total score out of 100 possible points:
| Grade | Minimum Total Score | Maximum Moisture | What It Signals |
|---|---|---|---|
| U.S. Grade A | 90 points | 18.6% | Best flavor and aroma, essentially free of visible defects, good clarity |
| U.S. Grade B | 80 points | 18.6% | Reasonably good flavor and clarity, more tolerance for minor defects |
| U.S. Grade C | 70 points | 20% | Fairly good quality, meets the floor requirements with the most tolerance |
| Substandard | Below 70 points | Above 20% | Fails to meet Grade C on one or more factors |
Notice that Grade A and Grade B share the same 18.6% moisture ceiling — what actually separates them is the flavor, defect, and clarity scoring, not water content. Only Grade C loosens the moisture allowance, and even then only to 20%, a threshold picked specifically because honey above roughly 19-20% moisture is measurably more likely to ferment in storage.
How the 100-Point Score Breaks Down
Each of the three scored quality factors carries its own point range per grade, and a sample has to clear the corresponding minimum in every category, not just hit the overall total, to earn a given grade:
| Factor | Grade A range | Grade B range | Grade C range |
|---|---|---|---|
| Flavor and aroma | 45-50 points | 40-44 points | 35-39 points |
| Absence of defects | 37-40 points | 34-36 points | 31-33 points |
| Clarity (filtered honey only) | 8-10 points | 6-7 points | 4-5 points |
Flavor and aroma carry the most weight by a wide margin: honey has to be free of caramelization, smoke taint, fermentation off-notes, and chemical contamination to score in the Grade A range. The “absence of defects” factor covers visible material that shouldn’t be there — wax particles, propolis fragments, and sediment — scored on how much it affects appearance or edibility rather than on a simple present/absent basis. Clarity only applies to filtered honey; strained or comb honey, where some suspended pollen and fine particles are expected, is evaluated differently.
Moisture Content: The Line Between Honey and a Fermentation Risk
Moisture is the one factor that functions as a hard ceiling rather than a sliding point score, and for a practical reason: honey above roughly 19-20% water content has enough available moisture for the osmotolerant wild yeasts naturally present in nectar to multiply, which is what causes fermentation in the jar months after bottling. The USDA standard sets Grade A and B honey at a maximum of 18.6% moisture and Grade C at 20%, giving producers essentially no room above the fermentation threshold at any grade. For the beekeeper’s side of that same question — how to verify moisture at the extractor and how ripe a frame needs to be before pulling it — see our guides to target moisture content for ripe honey and how to use a honey refractometer.
Why Almost No Honey on Store Shelves Is Actually USDA Graded
This is the part of honey grading that surprises most shoppers: participation is entirely voluntary, and the USDA does not inspect honey as a matter of routine or law. A packer who wants an official grade has to request and pay for the inspection, sample by sample or lot by lot, through USDA’s fee-for-service grading program. Most small and mid-size producers skip it entirely, both because of the cost and because a “Grade A” claim on a label communicates little that a “raw” or “local” claim doesn’t already communicate to most buyers.
This is a voluntary system. No enforcement or checking is performed.”
That single fact reframes what a grade mark actually tells a shopper: its presence signals that a producer chose to pay for third-party verification, but its absence says nothing about quality one way or the other. A small local beekeeper’s ungraded honey can easily outscore a graded commercial jar on every factor the USDA measures; they simply never submitted a sample.
The Pfund Color Scale Is a Different Measurement Than Grade
Color is tracked on its own scale — the Pfund scale, which assigns a millimeter reading to how much light passes through a honey sample, running from Water White and Extra White through Light Amber, Amber, and Dark Amber. Pfund color is reported on USDA-graded honey and used throughout the industry, but it is explicitly not part of the point score. A Dark Amber honey with clean flavor, minimal defects, and low moisture can still score a full Grade A; color only tends to correlate loosely with flavor intensity, and beekeepers already know exceptions exist, like light-colored Basswood honey that carries an unusually robust flavor for its color class.
How EU and Codex Standards Compare to the USDA System
Honey grading and labeling rules differ by jurisdiction, and moisture content is the easiest factor to compare directly because every major standard regulates it as a hard limit:
| Standard | General moisture limit | Notable exception |
|---|---|---|
| USDA (Grade A/B) | 18.6% maximum | Grade C allows up to 20% |
| EU Council Directive 2001/110/EC | 20% maximum | Up to 23% for heather (Calluna) honey; up to 25% for baker’s honey made from heather |
| Codex Alimentarius (CXS 12-1981) | 20% maximum | Up to 23% for heather honey |
The Codex Alimentarius Standard for Honey and the EU figures track each other closely because the EU directive was written to align with the international Codex standard, and both carry the same heather-honey exception: Calluna vulgaris honey is thixotropic, meaning a small protein fraction forms a gel network that traps water the bees would normally be able to evaporate, so a flat 20% ceiling would exclude an entire legitimate honey type. The USDA standard has no equivalent floral exception and applies its moisture ceiling uniformly regardless of nectar source, which is one of the structural differences between the U.S. and European approaches beyond the numbers themselves. For how these differences play out for honey actually crossing borders, see our guide to EU honey origin labeling law.
What Grading Does Not Tell You
The USDA standard is explicit that grading is voluntary and unenforced, and it is equally limited in scope: purity, added sugar syrups, undeclared heating, contaminants, and the accuracy of floral or geographic origin claims on the label are all outside what the four grading factors measure. A jar can be a clean, technically correct Grade A on flavor, clarity, defects, and moisture while still being diluted with corn or rice syrup, since none of those adulterants necessarily show up to a human grader’s taste and visual inspection. That gap is exactly why a separate verification industry exists. Programs like True Source Certified require accredited-lab testing — typically isotope-ratio mass spectrometry combined with nuclear magnetic resonance profiling — plus supply-chain audits specifically to catch origin fraud and added sugars that grading was never designed to detect.
Certified honey is tested for authenticity by an accredited laboratory using either EA/LC-IRMS and Nuclear Magnetic Resonance profiling or EA/LC-IRMS and High Resolution Mass Spectrometry analysis.”
In practice, that means grade and authenticity are two separate questions a buyer has to ask, not one. For how to check the second question yourself, see our guide to how to spot fake or adulterated honey, and for how large-scale fraud actually moves through the supply chain, see honey bottling and processing standards in the USA.
How to Read a Honey Label as a Shopper
Put the pieces together and a honey label breaks into three independent claims, each verified (or not) in a different way:
- Grade (A/B/C, rarely printed at all): a voluntary USDA quality score covering flavor, defects, clarity, and moisture — absence of a grade mark says nothing about quality.
- Processing claims (“raw,” “filtered,” “strained”): governed by separate labeling conventions, not by the grading standard. See our breakdown of the difference between raw and processed honey.
- Origin and authenticity claims (floral source, country of origin, “pure”): require separate lab verification or third-party certification to confirm, and federal labeling rules set minimum disclosure requirements. See U.S. honey labeling requirements for what producers are legally required to disclose.
None of the three substitutes for the other two. A shopper who wants both quality and authenticity assurance has to look for evidence of both, since a jar can legitimately claim one without the other.
Frequently Asked Questions
What is the highest USDA grade a honey can receive?
U.S. Grade A is the highest grade, requiring a minimum total score of 90 out of 100 points across flavor and aroma, absence of defects, and clarity, plus a moisture content at or below 18.6%.
Is USDA honey grading mandatory?
No. It is a voluntary, fee-for-service program. The USDA standard itself states that no enforcement or routine checking is performed, and producers must request and pay for inspection to receive an official grade.
Does a higher grade mean the honey is purer or more authentic?
Not necessarily. Grading measures flavor, aroma, visible defects, clarity, and moisture — not purity, adulteration, or true floral or geographic origin. Authenticity requires separate testing, such as isotope-ratio mass spectrometry used by third-party certification programs.
Why does dark honey sometimes still score Grade A?
Because color is measured separately on the Pfund scale and is not one of the point-scored grading factors. A dark honey with clean flavor, few defects, good clarity, and low moisture can score Grade A despite its color.
What moisture content disqualifies honey from Grade A or B?
Moisture above 18.6% disqualifies honey from Grade A or B under the USDA standard. Grade C allows up to 20% moisture, and honey above roughly 19-20% moisture carries a meaningfully higher risk of fermenting in storage.
How does the USDA moisture limit compare to European standards?
The USDA caps Grade A and B honey at 18.6% moisture. The EU’s Council Directive 2001/110/EC and the international Codex Alimentarius standard both set a general 20% ceiling, with an exception up to 23% for heather honey because of its naturally gel-like, water-retaining structure.
Can a beekeeper sell honey without ever having it USDA graded?
Yes. The overwhelming majority of honey sold in the United States, including nearly all direct-from-the-farm and farmers-market honey, is never submitted for USDA grading. Grading is optional and has no bearing on whether honey can legally be sold.
What is the difference between USDA grading and organic certification?
They evaluate completely different things. USDA grading scores flavor, defects, clarity, and moisture. Organic certification addresses how the bees were kept and what substances were used in the apiary, and is administered through an entirely separate USDA program with its own inspection process.
