> For the espresso samples, participants could not reliably tell the traditional and ultrasonic versions apart. There were no significant differences in aroma, flavour, bitterness or overall liking.
Also, please see the community guides. Treat comments in good faith (i.e. the strongest interpretation of their comment) and try to encourage productive conversations. IMO just quoting is degenerative to the conversation. Quote, but say more. Put your actual voice in the comment