Field Notes
Farming

Shade-Grown Coffee, Explained

Coffee grew up in the forest. Here’s what growing it under trees does for birds, soil and the cup, and why so many farms moved away from it.

September 3, 20264 min readBy Bump Coffee

The short version

Coffee is a forest plant. It naturally grows in the shade.
Shade farms have more birds, lose way less soil, and store more carbon than conventional farms.
Shade coffee went from about 43% of the world’s coffee land to 24% between 1996 and 2010.
The strictest label is Smithsonian Bird Friendly: organic, about 40% canopy cover, at least 10 shade tree species per hectare.

A lot of the world’s coffee is grown conventionally: tight rows of coffee in full sun on a cleared hillside, no trees overhead, usually with synthetic fertilizer and pesticides. That’s how a large share of coffee is grown today.

Coffee didn’t start that way. Wild coffee comes from the understory of Ethiopian highland forests, growing under a canopy of taller trees. Shade is where this plant comes from.

Why farms cut the trees down

Yield. Starting in the 1970s, many farms removed the canopy and planted sun-tolerant varieties more densely. More plants per acre meant more cherries, at least in the short term.

The trade-off is that the trees were doing a lot of work. Without them, farms rely more on synthetic fertilizer, herbicide and pesticide.

The shift was big. A 2014 study in BioScience led by Shalene Jha at UT Austin found shade-grown coffee dropped from about 43% to 24% of the world’s coffee land between 1996 and 2010.

What the trees actually do

Birds. The Smithsonian has studied this for decades. Coffee farms in Chiapas, Mexico have hosted around 180 bird species, 46 of them migratory. Only natural forest beats that. Shaded farms in Guatemala had 30% more birds and 15% more bird diversity than conventional full-sun farms.

Pest control. In Jamaica, keeping birds off coffee plants increased coffee berry borer infestation by 70%. In Guatemala, birds cut leaf-eating insects on coffee by 64% to 80%.

Soil. Same Nicaraguan hillsides, conventional full-sun coffee lost more than 2.5 times as much soil as shade coffee. Shaded farms also had 18% more soil carbon. (More on soil here.)

Weeds and carbon. With canopy cover around 40%, many weeds can’t establish. Less herbicide. Trees also store carbon. One Indonesian comparison found shade systems held 58% more total carbon than conventional full-sun coffee.

Does it taste better?

Often, yes. Shade slows down how fast the cherries ripen, so the bean has more time to build sugar. That’s why shade and high altitude keep showing up together in the sweet, complex stuff.

It isn’t the only factor. Variety, altitude, picking and processing matter just as much.

What “shade-grown” means on a label

“Shade-grown” has no legal definition. A farm with very few trees can still put it on the bag.

The strictest standard is Smithsonian Bird Friendly: organic certification, around 40% canopy cover, at least 10 shade tree species per hectare. And even that’s not everything. A study out this year in the Journal of Applied Ecology, run by the Colombian group SELVA with Smithsonian scientists, found the forest around the farm matters too. Forest birds needed more than 32% forest cover within 2 km to reliably show up. Shade coffee next to real forest works best.

What to look for

Named farm or region. Not just a country.
Want the strictest standard? Bird Friendly seal.
Ask your roaster what the shade actually is: what trees, how much, and who farms it.

Our take

Stop cutting down trees to grow shittier coffee. Simply just work with what you have. If you need to clear out some of the underbrush to make room for the coffee, that's fine, but make sure that you're not clear-cutting. Work with the habitat, mesh the two together, and leave the ecosystem intact.

That's the way you're going to get the best coffee. Your soil's going to stay intact. Everything's going to work much, much better together.

Our Nayarit coffee comes from one farm in El Cuarenteño, grown under shade and roasted every week in North County.

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