DIY Coffee Roaster (Copper Drum)
ฝัง
- เผยแพร่เมื่อ 9 ก.ย. 2024
- Very wonderful.
The heat conduction of a copper made coffee roaster is overwhelming.
music Boston Horns : Pink Polyester
=The thermal conductivity=
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Reference materials
Picasa goo.gl/FIctNz
• manual drum coffee roa...