Coffee and Espresso REFERENCE Solutions
Designed for the VST Coffee & Coffee/Espresso Refractometers.
Coffee Reference is 1.40% +/- 0.02%; 1.25oz (35gr)
Espresso Reference is 9.70 +/- 0.03%; 1.25oz (35gr)
Specifications are for use at 20.0 +/- 2.0 Deg C
Accuracy is warranted for 30-days after opening. Accuracy can be maintained for up to 90-days, if kept tightly capped immediately after each use.