
Fortissimo Coffee
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I bought the R2 because I thought it would be more convenient because of the app. This app doesn't have instructions on how to save your data. It's not intuitive at all. Instead of just letting you input your yield , you also have to add the weight of your cup, like users wouldn't know how to tare their scale. The refractometer connects to the phone, but it won't save the reading. This was not designed for a barista! Returning the refractometer and deleting the app, I'm going back to Atago.
1 person found this review helpful
Shenzhen Digitizing Fluid Technology
October 12, 2023
Sorry for this bad experience, but let me explain, you can indeed input yield directly later in the result analysis section or use the cut weight to make calculation directly without reweighting yield in a new cup. Our app supports manually input the TDS value so even though you back to Atago, you can still try it again.

Robin Ibbotson
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Edit - To submit TDS and EXT numbers, you need to enter the numbers and click on the chart to submit. Not the entry box. Fixed the TDS in the old app manually and I could get results I could use to compare cups. New update has boxes in Chinese, be good to get this dual language. Now I can't manually enter the EXT. It stays blank. The scales freeze on completion, so you can't weight the water in the grounds. After finally getting TDS measurements with fudging, now I get nothing on EXT!! 😡
1 person found this review helpful
Shenzhen Digitizing Fluid Technology
May 8, 2023
Sorry for this confusing using experience on EXT calculation. EXT, which refers to extraction rate, is calculated from yield weight, dose weight and TDS value. So you should be missing one of these parameters. We also have a discord group for all kinds of questions and feedback. https://discord.gg/Y8vhCrCDg7

Robert Kiswa
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No other options for brewing method other than pourover and espresso. There's no place to input coffee and other brewing details. Like information about the coffee used. Information of water used (TDS, water quality). Brewing Instructions: brewing equipment, type of filter, grinder, grind size. Flavor notes. At least these are the things I will need when using this app. Well, we take our coffee seriously that we have to be detailed about it. Thanks developers.
Shenzhen Digitizing Fluid Technology
January 13, 2023
Great thanks to your feedback, we will add these info gradually in our future update because we are considering every filed of brew result seriously. We have a discord group here, and looking forward to your join so we could discuss and improve this app together. https://discord.gg/Y8vhCrCDg7