Another Attempt with my Espresso Machine, with a Dark Roast/エスプレッソマシンに再び挑戦、深煎りで

Japanese Coffee Japanese Food
Since I got an espresso machine, I have enjoyed drinking espresso, made with a medium roast. This morning, I made a dark roast suitable for espresso.

Weight loss: 19.9%. This is the very first time that I have roasted coffee this dark.

Compare the roast (right) with the medium (slightly darker by my standards) roast with a weight loss of 17.7%.

I usually prefer a medium roast with a weight loss of 15-16%.

My two commercial-grade coffee grinders are now improved with hats for use in parties, which I bought at the 100-yen shop.

The left one is for grinding coffee for espresso.

I ground 10 g of just roasted coffee, and I got 9 g of it in the glass jar, with 1 g left in the coffee grinder.
焙煎したてのコーヒーを10 g挽きました。ガラス瓶に入ったのは9 g、コーヒーミルに1 g残っています。

This is my tamper. I searched all the house, and found this glass container for sake. It fits perfectly in the 53mm dia. portafilter.

I know I have to get a really good one sooner or later, but this one is a good substitute for now.

I brewed about 40 g of espresso from the 9 g of coffee.
9 gのコーヒーからエスプレッソを約40 g淹れました。
Problem: The brewing time is 10 seconds or so, which I think is too short.

Portafilter after the shot:

I need to find out what’s wrong.

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