Carbon Footprint of Coffee

0.4kg CO2per latte

Global avgIncluding dairy milk

This figure is a global average from peer-reviewed research. Actual values vary by country due to differences in energy grids, farming practices, and supply chains. Use our calculators for country-specific estimates.

Key Takeaway

A cup of black filter coffee produces approximately 0.05-0.1 kg CO2, while a latte with dairy milk jumps to roughly 0.4 kg CO2 — the milk typically contributes more emissions than the coffee itself. Globally, the coffee industry produces an estimated 70-80 million tonnes of CO2 per year. Brewing method, milk choice, and whether single-use cups are involved all significantly affect the per-cup footprint.

In this article

From Farm to Cup: Where Coffee Emissions Come From
The Milk Factor: Coffee's Hidden Carbon Cost
Pods, Filter, Espresso: How Brewing Method Matters
How to Reduce Your Coffee's Carbon Footprint
Frequently Asked Questions

From Farm to Cup: Where Coffee Emissions Come From

Coffee's carbon footprint begins on the farm. Coffee cultivation contributes roughly 40-60% of total emissions through land-use change (deforestation for new plantations, particularly in Brazil, Vietnam, and Indonesia), fertiliser production and application (which releases nitrous oxide, a potent greenhouse gas), irrigation, and on-farm processing such as washing and drying beans. Transport from tropical growing regions to consuming countries adds approximately 10-15%, primarily via container ships which are relatively efficient per tonne-kilometre. Roasting accounts for 5-10% of emissions, requiring temperatures of 200-230 degrees Celsius sustained for 10-20 minutes. The consumer phase — grinding, brewing, adding milk, and cup disposal — accounts for the remaining 20-35%. The consumer phase varies enormously depending on method: a simple black filter coffee uses minimal energy, while an espresso machine drawing 1,000-1,500 watts produces more emissions per cup.

The Milk Factor: Coffee's Hidden Carbon Cost

For milk-based coffee drinks, the milk is often the single largest source of emissions. A standard latte uses roughly 200-250 ml of dairy milk, which produces approximately 0.25-0.35 kg CO2e — more than the coffee beans, brewing, and cup combined. This is because dairy farming involves methane from cattle digestion, nitrous oxide from manure management, and emissions from feed production. Switching from dairy to oat milk reduces the milk component's carbon footprint by roughly 70-80%. Soy milk offers similar savings. Almond milk has low carbon emissions but high water use — roughly 74 litres per glass. Coconut milk is relatively low-carbon but raises concerns about monoculture farming and deforestation in producing regions. For regular coffee drinkers consuming 2-3 lattes per day, switching from dairy to oat milk can save 200-350 kg CO2 per year — equivalent to a short-haul flight.

Pods, Filter, Espresso: How Brewing Method Matters

Brewing method affects carbon footprint through energy use, material waste, and water efficiency. Drip filter coffee produces approximately 0.05-0.1 kg CO2 per cup when made in a full pot — it is energy-efficient because one brewing cycle makes multiple servings. Espresso machines draw 1,000-1,500 watts but operate for only 25-30 seconds per shot, resulting in roughly 0.07-0.15 kg CO2 per cup depending on machine type and whether it remains on standby. Single-serve pods (Nespresso, Keurig) produce approximately 0.06-0.12 kg CO2 per cup from the coffee and brewing, but the aluminium or plastic capsule adds an additional waste concern — though Nespresso reports aluminium capsules are infinitely recyclable when returned through their programme, actual return rates remain below 30% in most markets. French press and pour-over methods use the least energy, often relying only on a kettle boil, and produce 0.04-0.08 kg CO2 per cup. Instant coffee has a surprisingly moderate footprint per cup because the industrial manufacturing process is energy-efficient at scale.

How to Reduce Your Coffee's Carbon Footprint

The most impactful changes for regular coffee drinkers: (1) Switch to plant milk — oat milk reduces the milk component by 70-80% and is the simplest high-impact change. (2) Choose black coffee when possible — eliminating milk entirely reduces per-cup emissions by 50-80% for milk-based drinks. (3) Use a reusable cup — manufacturing a single-use paper cup produces roughly 0.05-0.1 kg CO2, and the UK alone discards 2.5 billion paper cups annually. (4) Brew efficiently — make full pots rather than single cups, turn off machines when not in use, and avoid leaving espresso machines on standby for hours. (5) Choose sustainably sourced beans — certifications like Rainforest Alliance and organic indicate practices that reduce deforestation and chemical fertiliser use. (6) Buy whole beans and grind at home — pre-ground coffee in individual packaging uses more material per serving. (7) Compost coffee grounds — they are rich in nitrogen and make excellent garden compost, diverting organic waste from landfill where it would produce methane.

Frequently Asked Questions

How much CO2 does a cup of coffee produce?

Black filter coffee produces approximately 0.05-0.1 kg CO2 per cup. A latte with dairy milk produces roughly 0.4 kg CO2, with the milk responsible for the majority. A cappuccino falls in between at roughly 0.2-0.3 kg CO2 depending on milk quantity.

Is oat milk better for the environment than dairy in coffee?

Yes, significantly. Oat milk produces roughly 70-80% less CO2 than dairy milk. For a daily latte drinker, switching to oat milk saves approximately 100-150 kg CO2 per year. Oat milk also uses far less water and land than dairy.

Are coffee pods bad for the environment?

Coffee pods produce moderate per-cup emissions from the coffee itself, but the single-use capsules create significant waste. Aluminium pods are recyclable but actual recycling rates are low. Compostable pods are improving. Reusable pod systems are the most environmentally friendly capsule option.

Is instant coffee more sustainable than brewed?

Per cup, instant coffee has a moderate carbon footprint because industrial manufacturing is energy-efficient at scale. It also reduces food waste since you use exactly what you need. However, the additional processing step means it is not necessarily lower-carbon than efficiently brewed filter coffee.