I have just bought a 6-cup Bialetti Moka Express, and the user manual quotes its 300 ml reservoir should result in 270 ml of coffee.
However, I have conducted some tests, and unless the grind size is around kosher salt, I am unable to get more than 100 ml out of it. I control the heat to have a stable flow. When the bubbles start I remove the heat and cool the pot down with cold water.
Does extracting so little coffee when compared to the manual quoted figure an indication anything is wrong?
If so, could you point where the problem might be coming from?