2 Posts

Refractometers

$Best Refractometers for Coffee Extraction$

Posted in
- Buying Guides
- Refractometers

15 Best Refractometers for Coffee Extraction (September 2026)

Posted byby Gerald Mueller
1 week ago
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23 min

I’ve spent the last several months testing refractometers across espresso pulls, V60 pour-overs, and French press batches to figure out which ones actually deliver reliable TDS readings without draining your…

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$Best Refractometers for Gemology Professionals$

Posted in
- Buying Guides
- Gemology Professionals

8 Best Refractometers for Gemology Professionals (September 2026)

Posted byby Gerald Mueller
2 months ago
0 Comments
16 min

When I started studying for my GIA gemologist certification five years ago, I borrowed a beat-up refractometer from my instructor and was hooked by the second test. That old unit…

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