Water at Origin


Editorial Policy

Published on

Last updated on

Photo: Chris Ryan.

Coffee Wastewater

[W]e don’t like to think of coffee as an industrial agriculture process that affects the environment, but it is. One of coffee’s greatest environmental impacts is through the milling process. To get the fruit off the bean, most coffee is processed using lots and lots of water. Cherries are sorted, pulped, rinsed of their fruit, and fermented in water, all steps that infuse the water with a lot of organic matter. According to a report in the SCAA’s Chronicle, it can take from thirty-five to sixty liters of water to process a pound of coffee.

That water, all too often, is then sent into streams and rivers untreated. The organic matter, like sugars and pectin, is broken down by bacteria in the water, a process that uses up the water’s oxygen. The lack of oxygen chokes aquatic life, killing entire ecosystems. At its worst, the wastewater can emit large amounts of methane, a natural gas that contributes to global warming. The water then becomes fetid and undrinkable without major treatments, something many communities in coffee countries can’t afford.

The Netherlands-based certification agency UTZ has been a leader in addressing this problem. Through a program started in Central America in 2010, farmers have filtered the water to trap much of the organic matter in tanks, sending cleaner water downstream (even with best practices a lot of organic matter enters the watershed). Methane production then occurs in the closed tanks instead of open streams and rivers. The methane is harvested for cooking fuel, replacing firewood. The project has been expanded to African and Asian coffee-producing countries to help rectify this major source of pollution produced by coffee. Check it out at utz.org.

A Different Coffee Filter

[W]hile we think of coffee countries as rich in water, many coffee regions suffer dry seasons that leave farmers and their families reliant on restricted, often unhealthy water sources. Shoe company Tom’s famously made safe water part of its coffee program’s one-for-one plan. A new coffee subscription service, Libra Coffee, will provide high-strength filters to families in the communities where Libra owner Eric Medina sources coffees. The filters, Medina says, can provide 100 people safe water for five years.

Cory Eldridge is Fresh Cup‘s editor.

Share This Article

Cory Eldridge

Join 7,000+ coffee pros and get top stories, deals, and other industry goodies in your inbox each week.

Other Articles You May Like

Sweet Companions: Creating The Perfect Coffee and Cheese Pairing

Its high fat content and overall creaminess makes cheese ideal for balancing coffee’s acidity.
by Madeleine Coghlan | January 24, 2023

Coffee Waste or Product Potential?

Thanks to innovative minds across the globe, coffee cherry excess is being repurposed in food products, merchandise production, and even as biofuel.
by Anna Brones | January 19, 2023

Grinding for a Purpose: Everything You Need To Know To Pick The Right Grinder

While espresso machines get most of the attention, grinders are the real workhorses of a café.
by Michael Butterworth | January 17, 2023

The 2022 Fresh Cup Gift Guide

We asked our global team of writers, editors, and designers to suggest some of their go-to gifts this holiday season.
by Ashley Rodriguez | December 14, 2022