I say don't bother with them. Anyone with half a brain can learn how to froth milk using a conventional steam arm with a one, two, three or more hole tip
Getting slightly off topic...I'm going to offer my Salvatore Espresso HX machine (with a real steam wand) for sale here on this forum shortly Pyment. You may or may not be interested in it. The price will be $850 including insured ground shipping to any of the lower 48 states
Why am I selling it? I need the money for another project. In this lousy Ibowa economy I'm forced to consider selling things I'd rather hold on to yet I've had a commercial espresso machine project that has been on the back burner for sometime and when my One Black (and Red) Salvatore espresso machine sells, that will give me incentive to move forward with the Rimini espresso machine project
The little machine on the left (below) is the Salvatore HX machine I'm selling. To the right is the Futurmat Rimini. Father Coughlin is above both
Jake
Reddick Fla.
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