Latest Entries »



應該說是『新古』,因為這個組合是現代的Hario TCA-3 + Cory玻璃濾芯。

此外,粉不能磨超過刻度3 (小富士平刀),要不然咖啡可能下不來。

CONA塞風壺 size C & D






平刀小富士(R-220) 開箱

網路上已經有很多小富士(Fuji Royal) 的文,我就不多說了。有鑑於專業磨豆機大多都是平刀,這台家用玩家等級的,價格上來說,相對很超值:



烘豆筆記 – Quest M3

  this is bad roast because:
1. ROR is flat
2. under develop
cupping is shown that result.

 over roasted


  this is bad roast because:
1. ROR is flat
2. under develop
cupping is shown that result.

Ethiopia Natural Yirgacheffe Gutiti G1 – Alemu Bukato 衣索比亞 日曬 耶珈雪啡 果丁丁村 G1 – 阿利姆布卡托小農


MacOS Sierra and ssh public key

If ssh dsa key is used for password-less access to other boxes, it won’t work in MacOS Sierra anymore.  It’s because:

The problem is that DSA keys are obsolete after OpenSSH 7.0, which the new system seems to use. I generated a new RSA key and things worked again. Also, in the process I found out that the authorized_keys2 file has been actually deprecated for a long time! So I advice everybody to use authorized_keys instead, which works both with protocols 1 and 2. That way Apple’s original sshd_config will work as is.

So be sure to redo your key in rsa before (or after) the OS upgrade.

Raspberry Pi 3 as Time machine

The Raspberry Pi 3 + external 4TB drive setup, originally I tried to set it up as Plex server. And the CPU is just not powerful enough.

I decided to convert it to a NAS for Time machine purpose.

Follow this post to install netatalk and other related setup.

Note that it’s wrong info about afp configuration (Edit the file /etc/afp.conf) section.

To configure afp, you should edit

sudo nano /etc/netatalk/AppleVolumes.default

, as stated in this post (File sharing with OSX).

To share the storage with Window machines, install samba.

update: So far the Raspberry Pi 3 is not powerful enough for me.  It takes several minutes for a movie to start streaming a mp4 file to ATV in the same LAN.  It just not good enough, yet.

My mac is getting old, can’t work on it as CPU go up to 100% while family is watching.

The plan is to move the Plex server to Raspberry Pi. It should be a economical replacement for the media function.

The solution seems mature, references can be found easily. I ordered the new board, prepare the SD card, and format my 4TB external USB drive to ext4 format. As the board arrives, I will get my hand dirty and note the process here.


Phidgets 1048 on OSX

update: 2017/07/05
After update macos to high sierra, phigets driver needs to be reinstalled.
With latest version of Roastmaster, you can use latest Phigets driver.

I got the Phidgets 1048 temperature sensor to hookup Roastmaster app and Quest m3s roaster.

The plan is exactly like Raintroy suggested. You would install the old OSX driver ( on a mac. The board is powered by the computer via USB.  The iPad is connected to the same wifi as the mac.  From there, Roastmaster app can read from the sensor via web service.

Using a 2 years old driver doesn’t sound to exciting to me.  And yes, it bring trouble to the setup.  As you complete the driver install, the testing program would show Attached: Nothing.

To fix the bug, you need to make sure:

  1. Install latest phidgets driver (and than override it by install the old driver required by Roastmaster)
  2. Make sure Java using mac’s original:
$ java -version
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-468-11M4833)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-468, mixed mode)

Both Apple and JDK have the instruction:

Hopefully the info helps if you have the same problem.

Other references:
Phidgets OSX doc:

Aeropress 愛樂壓 創辦人演講


  1. the longer you brew, the bitter it get. 泡越久就越苦。
  2. 水溫:中焙或深焙:175℉ (80℃);淺焙:185℉ (85℃)。
  3. 咖啡粉刻度:粗細依個人喜好(可細到expresso,或一般手沖刻度),建議espresso刻度或fine-drip。
  4. 水量:兩匙咖咖,沖到刻度二。
  5. 攪拌:count to 20,大約10秒。
  6. 不建議水加滿,會太苦。
  7. aeropress咖啡冠軍得主大部分用正向沖法,不用inverted method
  8. 他是喝深焙的。

最後來看一下2014 Aeropress冠軍:

El Capitan & Homebrew

El Capitan just released. And surely we need to take care the upgrade for Homebrew. Check this out if you’re not familiar with it.

Here’s the upgrade steps:

  1. update xcode to 7.0.1
  2. install command line tool
xcode-select --install
  1. fix /usr/local permission
sudo chown $(whoami):admin /usr/local && sudo chown -R $(whoami):admin /usr/local
  1. run update & upgrades
    brew update
    brew upgrade
    brew cask update
    brew doctor
    brew cleanup
    brew cask cleanup