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Starting into home roasting I've quickly realized the importance of a roast meter to evaluate the color of the coffee, this helps you better target different end temperatures / time but retain the same level of color and see how it influences taste.
Here's why I did this:
- Commercial grade roast meters are very expensive
- Chips and sensors are readily available/cheap and easy to get going.
- At the end of the guide, you will have a ~$100 roast meter, that is consistent and can help you get the most out of your roast.
A lot of effort has been made to make assembling the Roast Meter as easy as possible. But it does require some skill at electronics assembly and uploading software to the Roast Meter. This Wiki contains links to the information needed so it can be completed by less experienced persons, but plan to spend a fair amount of time learning first.
The Roast Meter is an open source, owner-built electrical device. No warranty for fitness or safety is implied or expressly stated for the Roast Meter. This includes but is not limited to the software, case design, and all instructions for how to build and use the Roast Meter. Each person who builds and uses the Roast Meter does so at their own risk.