What Are the Grades of Jamaica Blue Mountain Coffee?

When you buy a bag labeled 'Blue Mountain coffee,' how do you know it’s the real deal? Many coffee drinkers assume any high-altitude Jamaican coffee counts—but legally, only beans grown in Jamaica’s Blue Mountain region can use that name. And within that, not all Blue Mountain beans are equal. So what separates a top-tier Blue Mountain No.1 from a lower-grade No.3? The answer lies in bean size, grading rules, and strict export controls.

Jamaica Blue Mountain coffee is officially divided into three grades: No.1 (beans 17–18 mesh or larger), No.2 (16 mesh), and No.3 (15 mesh). All three grades are cupped and approved by Jamaican government-certified tasters, meaning their taste profiles are identical—the only difference is physical bean size.

What Defines Jamaica Blue Mountain Coffee?

By Jamaican law, only coffee beans grown in the Blue Mountain region of Jamaica can be called Jamaica Blue Mountain coffee. This isn’t a marketing term—it’s a legal classification. The Blue Mountains, located on Jamaica’s eastern side, are among the Caribbean’s highest ranges, with peaks reaching 2,256 meters. The area’s unique climate and elevation create ideal conditions for growing coffee with a famously balanced profile.

How Is Blue Mountain Coffee Graded?

The official grading system for high-quality Jamaica Blue Mountain coffee includes three grades based on bean size:

• No.1: 17–18 mesh (or larger)
• No.2: 16 mesh
• No.3: 15 mesh

A mesh size of 17 corresponds to 17/64 of an inch. All three grades are required to pass cupping tests conducted by authorized Jamaican tasting professionals, ensuring consistent flavor quality regardless of size. That means a No.1, No.2, and No.3 grade can all taste the same—they’re just sorted by bean dimensions.

How Is Blue Mountain Coffee Exported?

All three certified grades of Jamaica Blue Mountain green coffee must be exported in wooden barrels. These barrels come in three standard sizes:

• 70 kilograms per barrel
• 30 kilograms per barrel
• 15 kilograms per barrel

Each barrel is clearly labeled with the producing farm’s name, the importer’s abbreviated English initials, a batch number, and the destination port. For example, barrels imported by Japan’s ATAKA Trading Co. bear the initials “ATC,” while those from UCC Coffee carry “UCC.” This labeling lets buyers trace the coffee back to its specific Jamaican farm, importer, and port of entry.

Importers also receive an official yellow Certificate of Origin issued by the Jamaican government. These certificates are provided only to buyers purchasing full-barrel quantities (70 kg, 30 kg, or 15 kg) and include details such as the exporting farm, importer name, harvest year, quantity, grade, batch number, and arrival port.

What About Lower-Quality Beans?

Not all beans from the Blue Mountain region make the grade. Beans that are damaged, irregular in size, or cosmetically flawed but still taste acceptable must be exported in jute sacks—not wooden barrels. Even lower-quality beans with noticeable flavor defects are not allowed to be exported as green beans at all. Under Jamaican regulations, these beans can only be exported if they are locally roasted in Jamaica—and must be dark roasted to mask their flaws.

It’s important to note that the delicate, nuanced flavors of Blue Mountain coffee are best preserved through light roasting. So if you see a small pack of strongly roasted Blue Mountain coffee labeled as imported directly from Jamaica, it’s likely made from the lowest-grade beans—but at least it’s still authentic Blue Mountain coffee.

Why Wood Barrels Matter

Only two types of coffee from the Blue Mountain region are exported in wooden barrels: the officially graded No.1, No.2, and No.3 Blue Mountain beans, and the non-Blue Mountain but still high-altitude Jamaica High Mountain coffee. All other coffee types from the region are exported in jute sacks. The use of barrels is a key indicator of certified origin and quality control.

Frequently Asked Questions

What are the three grades of Jamaica Blue Mountain coffee?

The three official grades are No.1 (17–18 mesh), No.2 (16 mesh), and No.3 (15 mesh). They are differentiated solely by bean size, not flavor. All three must be cupped and approved by Jamaican certified tasters, ensuring they share the same taste quality.

Does Jamaica Blue Mountain coffee come in different sizes?

Yes. The beans are sorted into three grades based on mesh size: No.1 (17–18 mesh or larger), No.2 (16 mesh), and No.3 (15 mesh). These sizes reflect physical differences only; the flavor profile remains consistent across all three grades when cupped.

How is Blue Mountain coffee exported from Jamaica?

All certified grades of Blue Mountain coffee must be shipped in wooden barrels of 70 kg, 30 kg, or 15 kg. Each barrel is labeled with the farm name, importer code, batch number, and destination port. Importers also receive an official Certificate of Origin with detailed transaction information.

Can damaged or ugly beans still be exported as Blue Mountain?

Beans that are flawed in appearance but not flavor can be exported in jute sacks. However, beans with actual taste defects cannot be exported as green beans at all—they must be dark roasted in Jamaica first, which helps mask their off-flavors.

Why is Blue Mountain coffee exported in wood barrels?

Wooden barrels are used only for officially graded Blue Mountain coffee (No.1–No.3) and Jamaica High Mountain coffee. They indicate certified origin, proper grading, and quality assurance. Other coffee types from the region are exported in jute sacks.

Recommended FrontStreet Beans for Blue Mountain Fans

For those curious about the balanced richness of true Blue Mountain profiles, try FrontStreet Coffee’s Jamaica Blue Mountain No.1. It delivers the signature traits of the region—creamy body, subtle sweetness, and a well-rounded finish with notes of nuts and chocolate. Another excellent option is the FrontStreet Classic Blend, which, while not from Jamaica, offers a similarly approachable and smooth profile ideal for comparing with Blue Mountain’s finesse. Both beans highlight the elegance sought in high-quality single origins. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.