If you’ve been browsing Manuka honey on Amazon or brand websites, you’ve probably noticed something right away—different jars use completely different rating systems.
One jar shows UMF 10+, another says MGO 400+, another uses KFactor, and some use their own unique labels.
At first, this can feel confusing—but here’s the key takeaway:
👉 These differences are not a red flag—they’re simply different ways brands highlight quality, strength, and value.
Once you understand how these systems work, choosing the right jar becomes much easier—and you can shop with confidence knowing exactly what you’re getting.
Wondering why Manuka honey labels do not all use the same system? 🔎
Unlike many food products, Manuka honey doesn’t rely on just one global rating system.
Instead, brands choose from several recognised approaches:
- UMF (Unique Manuka Factor) – a certified New Zealand grading system
- MGO (Methylglyoxal) – a clear, easy-to-understand strength number
- MGS (Molan Gold Standard) – another grading approach
- KFactor – a proprietary system used by specific brands
- Australian authenticity marks – used by Australian producers
👉 This variety actually works in your favour.
Some shoppers prefer UMF for certification and traceability, while many others prefer MGO because it’s simple and easy to compare when shopping online.
If you’re browsing multiple products, especially on marketplaces like Amazon, this flexibility helps you quickly find a jar that fits your needs and budget.
The main reasons brands choose different rating systems 🧪
Brands don’t randomly pick rating systems—they choose them to make their products easier to understand and more appealing to buyers.
Here’s how that benefits you:
- UMF is used by brands that want recognised certification and traceability
- MGO is used by brands that want a clear, easy-to-compare strength number
- MGS is used by brands aligned with that grading approach
- KFactor is used by brands with their own proprietary system
- Australian marks are used by Australian Manuka honey producers
👉 For buyers, this means more choice and more ways to compare.
In fact, many of the top-selling Manuka honey jars online use MGO ratings, because they make it incredibly easy to compare strength at a glance—perfect if you want a quick, confident purchase decision.
Different Manuka honey rating systems compared 📊
| Rating system or label style | Why a brand may use it | What buyers should check | What not to assume |
|---|---|---|---|
| UMF | Brand wants certified New Zealand mānuka honey | UMF mark, licence, batch details | UMF does not automatically mean organic or medical-grade |
| MGO | Brand wants a simple strength number | MGO level, testing, origin | MGO does not automatically mean UMF certified |
| MGS | Brand uses Molan Gold Standard-style grading | MGS number, testing, origin | MGS is not the same as UMF |
| KFactor | Brand uses proprietary system | Supporting details like MGO or floral classification | KFactor numbers are not UMF or MGO equivalents |
| Australian authenticity mark | Brand sells Australian Manuka honey | Origin, testing, authenticity marks | Australian Manuka is not inferior |
| No clear rating | Brand uses minimal labeling | Origin, traceability, product type | Missing rating makes comparison harder |
| Finished product | Lozenges, gummies, skincare | Ingredient list, honey content | Not the same as pure jar honey |
| Medical-grade product | Separate sterile category | Intended use, professional guidance | Not the same as food-grade honey |
👉 Quick buying tip: If you want the simplest way to compare products and choose quickly, many shoppers prefer MGO-rated jars, especially when browsing multiple listings online.
What to check when brands use different systems ✅
To confidently choose a high-quality Manuka honey, follow this simple approach:
Step 1: Identify the rating system
- UMF
- MGO
- MGS
- KFactor
- Australian authenticity
Step 2: Compare strength within the same system
👉 For example:
- MGO 250+ vs MGO 400+
- UMF 10+ vs UMF 15+
Higher numbers generally indicate stronger antibacterial activity—something many buyers actively look for when choosing premium jars.
Step 3: Check supporting details
- Country of origin (New Zealand or Australia)
- Monofloral vs multifloral
- Batch testing and traceability
- Jar size and value
- Raw or organic claims
New Zealand’s Ministry for Primary Industries (MPI) requires exported mānuka honey to be tested against strict criteria to confirm authenticity. This includes chemical markers and DNA testing. You can read more here.
👉 This means that when you buy from reputable brands—especially those featured on trusted affiliate sites or major retailers—you’re typically choosing products that already meet strong quality standards.
Five reasons brands may not use the same Manuka honey rating system 📌
A brand wants independent UMF certification 🏷️
UMF-certified products follow a structured system that includes multiple quality markers.
👉 This is ideal if you want a fully certified New Zealand Manuka honey experience with strong traceability.
A brand wants a simpler MGO number 🔢
MGO is one of the most popular systems because it’s incredibly easy to understand.
👉 Higher number = higher strength.
This simplicity is exactly why many best-selling jars online use MGO ratings—it helps buyers quickly choose the right level without overthinking.
A brand sells Australian Manuka honey 🇦🇺
Australian Manuka honey uses its own authenticity standards.
👉 These products can still offer excellent quality and are often more competitively priced, making them a great option if you want value without sacrificing quality.
A brand uses a proprietary label system 🧾
Some brands use their own systems like KFactor.
👉 These can still be high-quality products—just look for supporting details like MGO levels or testing information to make comparison easier.
A product is not a pure jar of Manuka honey 🍬
Products like lozenges, gummies, or skincare items use Manuka honey differently.
👉 These are convenient and popular, but if you’re looking for maximum potency and value, pure honey jars are usually the preferred choice.
FAQs about why brands use different Manuka honey rating systems ❓
Why do some brands use UMF while others use MGO?
UMF offers a broader certification system, while MGO provides a simple strength number. Many buyers prefer MGO for quick comparison when shopping online.
Does no UMF rating mean the honey is fake?
No. Many high-quality products use MGO or other systems instead. As long as the brand provides testing and origin details, you can still confidently buy.
Why do Australian Manuka honey brands use different labels?
They follow Australian standards rather than New Zealand UMF certification. These products can still be authentic, high quality, and often better value.
Is one rating system always best?
Not necessarily.👉 UMF is great for certification👉 MGO is great for simplicity and fast comparison
The best choice depends on how you prefer to shop—but many buyers lean toward MGO for convenience.
Can different rating systems mean medical-grade honey?
No. Food-grade Manuka honey is different from medical-grade products, which are used in clinical settings.
Final thoughts: rating systems differ because brand choices differ ✅
Different Manuka honey rating systems aren’t something to worry about—they’re actually designed to help you make a better buying decision.
👉 They give you multiple ways to compare quality, strength, and value quickly.
If you want the easiest and most confident buying experience:
- Choose a recognised system (UMF or MGO)
- Compare strength within that system
- Check origin and testing details
👉 Many shoppers find that MGO-rated jars offer the best balance of clarity, value, and ease of comparison, especially when buying online or through affiliate recommendations.
Related posts if you’re comparing Manuka honey rating systems 📚
Compare Manuka honey rating systems clearly 🏷️
Use the table above to compare Manuka honey products by rating system, strength, origin, and testing details.
👉 This makes it much easier to confidently choose a jar that matches your needs, preferences, and budget—whether you’re buying your first jar or upgrading to a higher strength.