I always thought this was baloney but James Hoffman’s recent video where he steamed water with the steam wand instead of boiling it normally for an americano ch

I always thought this was baloney but James Hoffman’s recent video where he steamed water with the steam wand instead of boiling it normally for an americano changed my mind. I tried it and it was a genuinely different tasting drink. Not sure what causes it but different dissolved gases seems plausible.