VST LAB Coffee III Refractometer – Software Inc

Taste it, then measure it

You taste a shot and think it’s a little weak. A VST coffee refractometer tells you exactly how strong it is, as a number you can repeat tomorrow and share with your team. It’s how roasters and serious cafés keep every cup on target.

Why measure TDS?

TDS (total dissolved solids) tells you how much coffee ended up in the cup. Combined with your dose and yield, it shows your extraction, so you can see whether a sour or bitter cup is under- or over-extracted.

What it is

• Handheld refractometer for coffee and espresso TDS
• Typical accuracy ±0.02%
• Automatic temperature correction between 15°C and 40°C
• Includes VST software. Carry case not included.

How it works

1. Take a small sample of your brew and let it cool.
2. Place a few drops on the lens and read the TDS.
3. Enter dose, yield and TDS in the software to see your extraction.

Good to know

• For the full kit with case and accessories, ask us about the VST Refractometer Kit.
• Ships direct within 1–2 business days. Delivery is calculated at checkout.

Something worth measuring

Use it to dial in our OmniSoul blend or our single origins, and find each coffee’s sweet spot.