uganda ext ferment natural
uganda ext ferment natural
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We no longer offer an espresso grind size; this is because we cannot guarantee it will be correct for every machine.
FAR FROM ORDINARY…
This coffee is an excellent daily driver, perfect for espresso and filter.
farm/s: agri evolve
variety: SL14 & SL34
alt: 1800 masl
process: extended fermentation natural
region: rwenzori mts, Uganda
cup profile: blackberry !- violet - juicy
BRIGHT & FRUITY
Founded in 2016, Agri Evolve was the result of an observation of the local coffee market: farmers had the coffee, but lacked proper harvesting and processing facilities. On top of this, traders in the area only payed low, cash-in-hand prices, leaving producers unable to improve their own product.
Agri Evolve emerged as an alternative practise, initially buying home-processed naturals while working on developing a rapport with local farmers. This was important for when they began establishing themselves as a place to sell unprocessed cherries for a fair market price, and people now knew they could rely on Agri Evolve for payment. Not only that, but the funds made from exportation were funnelled back into programs focusing on training, education, facilities, and equipment all for the farmers to use to increase their yield and profits.
Over the years, Agri Evolve have grown their sourcing across the 200km span of the Rwenzoris, having registered 23,885 farmers in their system (as of 2025), and now having their own milling and export facilities.
Agri Evolve’s extended fermentation process involves placing cherries into barrels, each barrel holding about 145kg. The barrels are then sealed and left for 4 days, at which point the now fermented cherries are spread out on raised drying beds. Cherries are turned regularly to promote even drying.
BREW GUIDE BELOW.
**IMPORTANT SHIPPING INFO**
PLEASE SELECT FROM TRACKED 24 or TRACKED 48 SHIPPING.
Brew Guide Below
Temperature
Temperature
For pour-over filter methods, aim for the mid 80’s. We are aiming to preserve the sweetness of these coffees. Espresso, aim for lower 90’s.
Ratios / dose / bloom
Ratios / dose / bloom
Pour over:
Larger doses, smaller water ratios.
Initiate a bloom with minimal water, leave for up to a minute then start your pulse pours to the desired amount.
Espresso:
For larger doses, aim for a slightly larger yield than a 1:2 ratio but again cater to your taste. Use a pre-infusion if possible. Aim for an extraction in the mid-20 seconds.
Rest periods
Rest periods
Please ensure a rest period of at least 3 weeks for ALL brew methods; each coffee will be different in terms of rest needed. All our coffees will benefit from a substantial rest period of anywhere from 3-6 weeks (!) Ideally, you will grind what coffee you need and not keep pre-ground coffee for any length of time. Espresso generally needs a longer rest period than filter coffees, to fully de-gas and settle.
Freezing
Freezing
Please don’t freeze our coffees, it’s largely to do with the nature of the rest periods needed to develop profiles. As soon as a coffee is frozen, the development stage stops.
our process
we roast coffee in Livingston, near Edinburgh. Our roaster of choice is a typhoon fluid bed roaster. All electric.
all our coffees are rested before selling, to ensure they have developed fully before brewing. Optimal drinking is around the 3 week past roast date mark, although each coffee is uniquely different.
Coffee Info
Good to know
Roast Dates
We roast our coffees fresh every week so they can be enjoyed at their best – after a short rest. Following roasting, beans release CO₂, and their flavours gently settle, which is why we recommend letting them rest before brewing. For all brew types, they are best left for 3-4 weeks post-roast for optimum flavour. Store your coffee in a cool, dark place in a sealed bag or airtight container, and you’ll taste the clarity, sweetness, and balance that proper resting brings.
How our coffee gets to you
Otherwise known as Shipping and Despatch - we use Royal Mail if shipping in the UK and UPS if shipping abroad. We aim to ship off ASAP after purchase. This is different for pre-orders or some limited runs, so be sure to either check the product page, or ask!
Unsure about something?
If you want clarity on anything or some help with brewing methods, just get in touch. No such thing as a stupid question...
Best place to reach us is on Instagram, through the website or andrew@thesourcecoffee.co.uk