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Experimental coffees and research

03. Our Research

Experiment #139

Espresso|Sep 4, 2016

Espresso Brewing Pressure: Is 9 Bars really optimal?

Almost all semi-automatic espresso machines are calibrated and set by default to brew at roughly 9 bars of pressure. Lucky for us, we use the Slayer espresso machine, one of the few espresso machines out there that allows for easy tweaking of the brew pressure. This week, we will be setting out to test the impact of brewing pressure on the resulting espresso and it's extraction percentage.
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Experiment #138

Espresso|Aug 13, 2016

Levy Tamp vs Pergtamp

Tamping is one of the crucial steps to espresso preparation. Last week, we set out to test two different aspects of tamping; the levelness of a tamp, the tamper's base size and their effects on the resulting espresso. If you haven't already read it, you can check it out below! This time, we are doing a direct comparison between the Levy Tamp and the Pergtamp.
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Experiment #137

Espresso|Jul 23, 2016

The most important article about Tamping you'll ever read

Tamping is one of the crucial steps to espresso preparation. Many baristas have been taught to tamp evenly with 30 pounds of pressure and to ensure tamping levelness. Today there are also different tampers from flat bases to concave to ribbed surfaces and even different base sizes. This week we set out to test two different aspects of tamping; the levelness of a tamp, the tamper's base size and their effects on the resulting espresso.
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Experiment #136

Espresso|Jun 26, 2016

The King of Distribution Techniques

One of the commonly discussed variables in espresso preparation is distribution techniques. There are many techniques and methods for distributing the grinds in the portafilter basket but which one truly gives the better espresso? We decided to conduct a little experiment to find out for ourselves once and for all. Which is the King of Distribution Techniques?
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Experiment #135

Espresso|May 19, 2016

Think You're a Good Barista? Try this 1:3 Brew Ratio Test!

1:3 Brew Ratios have become increasingly popular over the last few years. Matt Perger of St. Ali in Australia has been championing the idea of higher brew ratios for awhile now, Tim Wendelboe routinely serves 1:3 Brew Ratios for Espressos at his shop, so does Five Elephant, our own home-grown Oriole Coffee and many more. What is the reason behind 1:3 Brew Ratios' increasing popularity and why isn't everyone brewing it?
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Experiment #134

Espresso|May 4, 2016

What Exactly is the Ristretto? How do we brew it?

There are many variations to the espresso. One of the most commonly ordered variation is the Double Ristretto. Traditionally defined as a very strong or concentrated espresso, the ristretto is typically an espresso with a 1:1 Brew Ratio, while double just means a double shot.In our experience however, we have come across 2 different methods or brewing ristrettos; the Three Part Extraction theory and the fixed 1:1 Brew Ratio method.
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