I don't like acidity in my coffee much. Stuff I get from my moka pot on the other hand was always very acidic.

Recently I bought a bag of very good, beautiful smelling beans from my favourite coffee shop and brewed it on moka pot. The results are still the same, it almost tastes like lemonade. It is undrinkable amounts of acid in there.

I use the 1zpresso Q Air. I tried nearly every grind setting between 1.6-0.9 (chart, please click). Always the same result.

I also tried starting with both hot and cold water. No difference.

I do not tamp my coffee and flatten it nicely by shaking the basket. I don't overfill the basket.

My moka pot is 2-3 years old and I might need to change its gasket, wonder if that has anything to do with it but i doubt it since the gasket still seals pretty good except for a 5-10mL water leak every brew.