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Starmaya PB (Fully Washed)

Regular price £12.95
As low as: £13.50
Regular price Sale price £12.95
83.75 Cup Score

This washed Starmaya comes from Mount Sunzu Coffee, a forward-thinking farm in northern Zambia at the base of the country’s highest mountain. Founded by a team of Swiss agronomists and entrepreneurs, Mount Sunzu is redefining what coffee farming can look like — combining quality production with climate-smart practices and long-term community investment. 115 hectares are under coffee, with 600 hectares of Miombo forest actively reforested as part of the farm’s commitment to environmental restoration.

This lot was processed entirely on-site at Mount Sunzu’s wet and dry mill. After careful picking, the ripe cherries were floated and pulped, then fermented for 24 hours in 1000ml tanks without water. Fermentation relied on naturally occurring yeast and bacteria to develop complexity and structure. The coffee was then dried over ten days on raised beds, which were covered at night to maintain consistency, before being hulled, graded and hand-sorted.

Processing method
Washed
Main flavour notes
Dark Chocolate | Dark Berries | Brambles
Varietal
Starmaya
Harvest period
2024/25
Altitude
1600 masl
Species
Arabica
Region
Mbala, Zambia
See on a map
Recommended brewing method
Espresso (milk based) , Espresso (black) , Fruity Filter , Pour Over
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How Much Do You Need?

Free Shipping

All UK orders ship free – no matter the size.

Weight   Availability Price Per KG Total Price Price Per KG
0.5kg   128 left £25.90/kg £12.95
£25.90/kg
Best Seller
1kg   64 left £21.95/kg £21.95
£21.95/kg
2kg   32 left £14.97/kg £29.95
£14.97/kg
5kg   12 left £14.19/kg £70.95
£14.19/kg
10kg   6 left £13.99/kg £139.95
£13.99/kg
20kg   Only 3 left £13.69/kg £273.95
£13.69/kg
Best Value
30kg   Only 2 left £13.49/kg £404.95
£13.49/kg

Want to sample before you purchase?

Type Total Price Total Price
50g Unroasted Sample £3.95
30g Roasted Sample £5.95

Roasted samples are roasted using the most suitable representative profiles and may delay delivery.

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Our Guarantees

Quality Guaranteed

If quality doesn’t match the listing, we’ll refund or credit you – no fuss. Read more

Sealed Securely, Delivered Quickly

We ship quickly in secure, specially designed, sealed packaging to keep your green coffee fresh. Read more

Transparency You Can Trust

We share full harvest, origin, and quality info up front - no vague claims or guesswork.

Cupping Report

By Alex Green from
83.75
CUP SCORE
Fragrance
7.5
Flavor
7.75
Acidity
7.5
Aftertaste
7.75
Balance
7.75
Body
7.75
Overall
7.75

Cupping Notes

Moody and complex, with dark chocolate, ripe brambles and dark berries carrying through a long, layered finish.
Report By
Alex Green
Omwani

Meet your producer

Name Mount Sunzu
Year Started 2018
Location Mount Sunzu Coffee Farm See on a map

Mount Sunzu Coffee is a modern farm in northern Zambia, near the country’s highest mountain. Founded by Luca Costa, Fridolin Stocker, and Yanik Costa, it combines high-quality coffee production with a strong environmental and social mission. The team secured a 780-hectare site in Mbala in 2018 and have since transformed it into a forward-thinking agricultural model.

115 hectares are planted with coffee, with more under development, while 600 hectares of Miombo forest are protected and being actively reforested. The farm uses solar-powered irrigation, processes coffee on-site using washed, honey and natural methods, and supports biodiversity through beekeeping.

Alongside its environmental goals, Mount Sunzu provides fair, year-round employment to over 120 local staff, plus seasonal work. Wages include pension, health insurance and accident cover. The farm also invests in infrastructure, including an 8km road network, with future plans for clean water and solar access in the surrounding community.

Mount Sunzu’s goal is simple but ambitious: to prove that climate-smart, socially responsible coffee farming can deliver exceptional quality — and lasting impact.

Meet your sourcing partner

Omwani

Countries of operation Uganda, Burundi, Rwanda, Kenya, Ethiopia, Malawi, Mozambique, Madagascar
Established date 2018

We’re an African-focused green coffee company built on long-term relationships and real impact. We prioritise trust over transactions, ensuring producers stay at the heart of everything we do. Our approach is simple, direct, and jargon-free—connecting roasters with exceptional coffee and the people behind it.

Regular price £12.95
As low as: £13.50
Regular price Sale price £12.95
Cupping Score
83.75
Processing method
Washed
Varietal
Starmaya
Main flavour notes
Dark Chocolate | Dark Berries | Brambles
View full details

Available Now

In warehouse and ready to go

Pay in your preferred currency

We support +30 currencies

Buy now, pay later

Relaxed payment terms to suit you

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    Hugh W

    Large selection of excellent quality green coffee. Everything I have tried so far has been exceptional even with my amateur roasting skills.Fast delivery and great customer service.Very happy customer here and I will definitely be back for more!

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    Dan Neale

    My absolute no1 place to get my small quantities of green coffee. Service is impeccable and the price is very very fair. For a small batch roastery this was one of our biggest point to navigate but the Green Coffee Collective made this a nothing thing for us now.

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    Gordon D

    Highly recommend the Green Coffee Collective for all your raw green unroasted coffee beans. I’ve been buying from this company for a few months now, buying generally in 1Kg batches.The choice is amazing. I’ve had first class service, with great communication and speedy dispatch of all orders.

How we package
our coffees

Barrier packaging designed for specialty coffee.

We use Ecotact bags because they offer high-barrier protection against oxygen, moisture, and external contaminants. This helps preserve the quality, aroma, and flavour potential of your green coffee during transport and storage. They're trusted by top producers and importers worldwide.

Heat-Sealed for Maximum Protection

Every bag is professionally heat sealed at our warehouse to lock in freshness. This creates a secure seal that prevents exposure to air or humidity - keeping your green coffee stable, even over long periods.

Convenient Resealable Zip Closures

Once opened, each bag has a resealable zip to help you store and protect the rest of your coffee between roasts. It’s a simple way to reduce waste and maintain freshness - especially helpful for home roasters or sampling.

Portion sizes for any roaster.

Whether you're roasting at home or running a production line, we've got a size to suit. Choose from 0.5kg, 1kg, or 5kg bags - all packed with the same level of care. Smaller volumes make it easy to try new coffees without the commitment.

Responsible packaging choices.

Our bags are made from Graded 7 multi-layer recyclable plastic. While they may not go in your home recycling bin, they are accepted by specialist facilities. More importantly, they reduce waste by dramatically extending the shelf life of your green coffee.

Frequent Questions

Is your coffee unroasted?

Yes – all the coffee we sell is raw, unroasted green coffee unless clearly marked as a roasted sample. It might sound obvious, but it's one of the most common questions we get! If you're buying from us, you're getting green coffee ready for roasting.

How long does delivery take, and can I track my order?

We usually pack and dispatch orders within 1–2 working days. Once it’s on the move, you’ll get a tracking link so you can follow it all the way to your door.

For UK and EU deliveries, most orders arrive within 2–5 working days. International shipping can take a little longer depending on customs, but we’ll keep you updated every step of the way.

If you need your coffee urgently, you can select an express shipping option at checkout.

How does your quality guarantee work?

We stand by every coffee we offer — if the quality doesn’t match the listing, we’ll refund or credit you. No fuss.

We work directly with specialty producers and sourcing partners who are deeply connected to their regions. Every coffee is selected based on quality, transparency, and value — and we always share the details up front, from processing to cupping scores.

If something feels off when your coffee arrives, just get in touch. We’ll put it right, every time.

Will I need to pay customs duties or taxes?

No - if you're ordering from within the UK or EU, there are no extra customs charges or hidden fees. We warehouse UK orders in the UK and EU orders in the EU, so everything stays within the region. The price you see is the price you pay.

What payment methods do you accept?

We accept all major credit and debit cards (Visa, Mastercard, Amex), plus PayPal. You can also use gift cards at checkout. If your gift card doesn’t cover the full amount, you can easily top it up with another payment method.

How does your pricing work?

We keep our pricing simple, transparent, and fair. What you see on the product page is the final price per bag - no hidden fees, no surprises at checkout.

Prices are based on the coffee's quality, variety, processing method, and how it's sourced. We offer multiple sizes (from 0.5kg to 5kg), with smaller sizes priced to include repacking and packaging costs. Shipping is free, and VAT is already included in the price you see.

Do you offer any roasting advice for green coffee?

Absolutely. We work with roasters of all levels – from complete beginners to seasoned pros – and we’re always happy to share what we know.

You’ll find starter tips and roast profiles on our blog, or you can drop us a message if you’ve got questions about a specific coffee. A medium roast is usually a great place to start - it gives you a balanced view of the coffee’s flavour, and you can adjust from there.

What is your return policy if I'm not satisfied with the coffee do you offer any guarantees?

We want you to be happy with every coffee you try. If something doesn’t feel right - whether it’s a quality issue or your order isn’t what you expected - just get in touch. We’ll always do our best to put it right, whether that means a replacement, refund, or store credit.

Is there any customer support available if I have questions after purchasing or if something goes wrong?

Definitely. We’re here to help before, during, and after your order. If you have any questions about your coffee, roasting, or if something’s gone wrong with your delivery, just reach out. We’re a small team, but we’re quick to reply and always happy to sort things out.

You can contact us by email (hello@greencoffeecollective.com) or through the form on our website whatever works best for you.

What do your flavour notes mean?

Flavour notes describe the natural characteristics found in the coffee - shaped by things like variety, processing, and how it’s cultivated.

You might notice hints of chocolate, red fruit, florals or citrus. These aren’t added flavours - they’re subtle notes that come through when a coffee is grown, processed, and roasted with care. We include detailed origin info and flavour profiles on every product page to help you choose the right coffee for your taste.

Can I sample the coffee before purchasing?

Yes - we offer samples for nearly all of our coffees. There’s a small fee to cover the cost of packaging, green coffee, and prep, but it’s a great way to try before committing to a larger order.

Samples may not be available on limited-release or rare coffees due to low stock. If you’re unsure, just get in touch - we’re happy to help you find the right fit.

Unfortunately we can't offer samples in the EU yet.

How does the Cupping Score translate into taste or quality?

The cupping score is a quality grading system used by coffee professionals. It’s based on how a coffee tastes in a controlled tasting — looking at things like sweetness, balance, acidity, and complexity.

80–84 = Clean and consistent with good flavour — great everyday coffees.

85–87 = More complexity, distinct flavours, and refined sweetness.

88+ = Exceptional – rare, expressive coffees with standout characteristics.

Scores help you understand what to expect in the cup, but taste is personal. We include flavour notes and process details on every product page to help you find what suits your style best.

What’s the best way to brew this coffee once it’s roasted?

That depends on the coffee and how you like to drink it — but most of our coffees will shine as a filter brew (like V60, Chemex, or batch brew) or as a single origin espresso.

We’ve grouped our coffees into helpful collections like Espresso, Fruity Filter, and Cold Brew to guide you toward the right fit. Once roasted, feel free to experiment - you’ll quickly discover what brings out the best in each bean.