Peaberry coffee: what it is and how it tastes

Most coffee beans have one flat side. A peaberry does not: it is small, round and shaped a little like a pea. Peaberries are a natural quirk of the coffee plant, and some roasters sort them out and sell them as a separate lot, often from Tanzania, Kenya or Hawaii. Here is what a peaberry is, how it tastes and whether it is worth seeking out.

What is a peaberry?

A coffee cherry normally holds two seeds that grow facing each other, which is why ordinary beans are flat on one side. Sometimes only one seed develops, and with the space to itself it grows round. That single round seed is a peaberry. In German it is called Perlbohne, in Spanish caracol or caracolillo.

Peaberries make up only a small share of a harvest, often quoted as around 5 to 10%, depending on the plant, the variety and growing conditions. They can appear on any coffee plant, arabica and robusta alike.

How peaberries are sorted

After processing, green coffee is graded by size and shape on screens with holes of different sizes and shapes. Round peaberries fall through slots that hold back flat beans, so they can be separated mechanically and then checked by hand. In Kenya and Tanzania, peaberry is its own grade, marked PB on the sack, next to grades such as AA and AB.

Does peaberry taste better?

Peaberries are often described as sweeter, brighter or more concentrated, and some tasters find them so. The honest answer is that it depends on the coffee. What is clear:

• They roast evenly. Round beans roll more freely in the roaster and heat more evenly than flat beans, which can give a cleaner, more consistent roast.
• They are a separate lot. Sorting means the roaster gets a uniform batch of one size and shape, which helps consistency in the cup.
• The origin matters more. A Kenyan peaberry still tastes Kenyan: juicy, with blackcurrant and citrus notes. A Tanzanian peaberry is often bright and fruity, a Hawaiian one mild and sweet.

Peaberry is therefore best seen as a way to explore a coffee from a different angle, not as a guarantee of a better cup. If you can, taste a peaberry next to a flat-bean lot from the same farm.

Why is peaberry more expensive?

Because there is less of it and sorting it takes work. Prices also depend on the origin: Kona peaberry from Hawaii is among the most expensive coffees in the world, largely because Kona coffee itself is scarce and costly to grow. Read more in the most expensive coffee beans and our page on coffee from Hawaii.

How to brew peaberry

Peaberry is brewed like any other coffee of the same origin and roast. Most peaberry lots are roasted light to medium to show their fruit, which suits filter, pour-over and AeroPress. Because the beans are dense and small, you may need a slightly finer setting than usual; check the grind size chart and taste. As espresso, a medium-roasted peaberry can be very sweet.

Where to find peaberry coffee

Search the catalog for peaberry coffees from independent roasters, or start from the origins best known for them: Tanzania, Kenya and Hawaii. Each coffee links to the shop that sells it, usually the roaster's own. If you are new to choosing beans, read how to choose coffee beans first.

Quick answers

Is peaberry a variety of coffee?

No. It is a natural mutation of the fruit that can happen on any variety. A peaberry lot is sorted from an ordinary harvest.

Is peaberry stronger?

Not in caffeine. Its caffeine content depends on the species and variety, like any other bean.