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Berry Blues

NewDak's FavouriteFunkyRound

Berry Blues is back. We’ve had this coffee in different variations over the years, sometimes under Berry Blues, sometimes as Blueberry Boom, and it remains a favourite across the DAK team for its big fruit character and how much fun it is to drink. This year’s harvest from Esayas Beriso is an anaerobic natural, grown high in Oromia, Ethiopia, and slowly dried in the shade. There’s plenty of dark fruit and a boozy edge: grape soda up front, myrtle liquor behind it, and a cashew-butter richness that gives the cup its buttery body and creamy mouthfeel.


Origin Ethiopia
Region Oromia
Producer / Farm Produced by Esayas Beriso
Harvest 2026
Tasting notes Cashew Butter, Grape Soda, Myrtle Liquor
Altitude 2300masl
Varietal Heirloom
Process Anaerobic Natural
Intervention Level Medium

Weight
Roast Profile

FROM ORIGIN TO CUP

Esayas Beriso grows this coffee in Oromia at 2300 masl, where the cooler temperatures slow the maturation of the cherries. The heirloom cherries are fermented anaerobically, then dried slowly in the shade with the fruit still intact. In the cup, the fruit moves towards the darker, boozier side, with grape soda and myrtle liquor, followed by a silky, buttery texture that brings cashew butter to mind.

Origin

This lot comes from Oromia, Ethiopia, where Esayas Beriso grows coffee at 2350 masl. At this altitude, cooler temperatures slow the development of the cherries, giving them more time to mature before harvest. It is part of what gives coffees grown at this elevation their concentrated sweetness and structure in the cup.

Varietal

Ethiopian heirloom refers to the many local coffee varieties that have grown in Ethiopia for generations, rather than a single defined cultivar. They can produce a wide range of profiles depending on where they grow and how they are processed. In this lot, the combination of heirloom varieties and anaerobic natural processing moves towards darker purple fruit, with the grape and boozy character we find in the cup.

Processing

Anaerobic natural, shade-dried. The cherries are kept whole and fermented in a sealed environment with limited oxygen before being moved to the drying stage. They then dry slowly in the shade with the fruit still intact around the seed. Here, the process pushes the fruit towards grape soda and myrtle liquor, while the slower drying accompanies the dense, silky texture we find in the cup.

Intervention level

Medium. The coffee goes through a controlled anaerobic fermentation before drying, adding an intentional step that can noticeably shape the final profile. From there, the whole cherries are dried slowly in the shade. There is clear intervention in the fermentation, but the process remains relatively restrained compared with more heavily manipulated or multi-stage methods.

Cashew Butter
Grape Soda
Myrtle Liquor

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THE DAK BREW GUIDE

These are the recipes we use every day at the roastery and showroom. We keep them simple on purpose: water, ratio, grind size. The coffee does most of the work when the basics are right. Every setup is different, so treat these as a starting point. Adjust based on what you're tasting and what your equipment gives you.

General

For most grinders and most bars. Balanced, works black and with milk.

• Ratio: 1:2.5
• Dose: 18 g
• Yield: 45 g
• Brew time: 25 seconds
• Pressure: 9 bars
• Temperature: 93°C

For our roast level 1:2.5 ratio fully extracts, balances and opens the cup without thinning it compared to the classic 1:2.

Modern

Longer ratio, lower pressure, shorter contact. More clarity and acidity.

• Ratio: 1:3
• Dose: 18 g
• Yield: 54 g
• Brew time: 20 seconds
• Pressure: 6 bars
• Temperature: 93°C

A note on equipment: 1:3 relies on a flat burr set capable of a very even grind.
On an E65, E80 or Mythos this ratio often tastes watery. If that happens, pull back to 1:2.5.

Advanced (pressure profiled)
For machines with flow or pressure control. This is the showroom recipe.

• Ratio: 1:3
• Dose: 18 g
• Yield: 54 g
• Total brew time: 40 seconds to 1:20 total
• Pre-infusion at 2 bars (about 1 to 2 g/sec flow rate) until 1g in the cup, 20 to 40 seconds
• Main extraction: 6 bars until 18g yield. (about 5 to 6 g/sec flow rate)
• Post-infusion: 2 bars (about 1 to 2 g/sec flow rate) until 54g final yield
• Temperature 93°C

Washed

• Ratio: 1:16.6
• Dose: 15 g
• Water: 250 g
• Brew time: 2:30 minutes to 3 minutes
• Temperature: 95°C

Poring structure

Start your timer with the first pour. The weights below are the total water added.

• 0:00 pour to 50g (8 g/sec, medium)
• 0:30 pour to 100g (8 g/sec, medium)
• 1:00 pour to 250g (3 g/sec, very low)

Pouring very slowly keeps the bed open. Let the water draw down to finish the brew.

 

Natural and other fermented processes

• Ratio: 1:15
• Dose: 16.5 g
• Water: 250 g
• Brew time: 2:30 minutes to 3 minutes
• Temperature: 92°C

Poring structure

Start your timer with the first pour. The weights below are the total water added.

• 0:00 pour to 50g (8 g/sec, medium)
• 0:30 pour to 120g (8 g/sec, medium)
• 1:00 pour to 190g (3 g/sec, very low)
• 1:30 pour to 250g (3 g/sec, very low)

Pouring very slowly keeps the bed open. Let the water draw down to finish the brew.

Water is 98% of your cup, so it changes everything. Mineral content varies between cities, neighbourhoods, and even seasons depending on which reservoir is supplying the tap. If your water is hard (above 150ppm), switch to a soft bottled water around 50ppm. Too soft is always better than too hard. The difference in the cup is immediate.

Ethiopian coffees
Ethiopian beans are more brittle and produce more fines when grinding. Too much agitation during brewing pushes those fines into the filter and slows everything down. Keep agitation low. If the cup still tastes over-extracted or the drawdown stalls, grind coarser and extend the ratio or brew time slightly to compensate.

The look of a shot
Naked portafilters show you what’s happening, but what you see has no reliable connection to what you’ll taste. A messy-looking shot can taste clean, and a photogenic one can taste flat. Taste every shot, even the ones outside your parameters, and adjust from there.

Crema
Crema is gas escaping coffee under pressure. It carries very few desirable flavour compounds and can actually taste harsh. Removing it will almost always improve the cup. With light roast espresso especially, ignore the crema and focus on what’s in the liquid.

Freezing coffee
Freezing keeps coffee at peak flavour, but roasted coffee can’t be thawed and refrozen without losing quality. Vacuum-seal in single doses before freezing. When you’re ready to brew, grind it frozen. Don’t let it thaw first. Every grinder handles frozen beans without issue, and the results are often better. One dose out, the rest stays sealed.

Long ratio (for harder extraction)
For when extraction is more difficult: hard or heavily filtered water, a grinder past its best, or a dense lot.

1:18 ratio. 14g in, 250g out. 2:30 to 3:00. 97°C.
• 0:00 pour to 45g
• 0:30 pour to 90g
• 1:00 pour to 250g

1:20 ratio. 12.5g in, 250g out. 2:15 to 2:45. 97°C.
• 0:00 pour to 40g
• 0:30 pour to 80g
• 1:00 pour to 250g

Adjusting

• If the cup tastes thin, dry or harsh: raise the dose. Move from 15g to 16 or 16.5g at the same 250g yield.
• If espresso tastes watery at 1:3: shorten to 1:2.5 before touching the grind.
• Water: very low or very high TDS shifts everything. Check the water before changing the recipe. If the water cannot be changed, go to the long ratio recipes.