French press – based on the size of the filter you have on your press. But generally a coarser grind is preferable.
The water stays in contact with the coffee for a decent amount of time unlike espresso where water just flows through. So it can better extract the flavour from the coffee
Because we have little option of grinding coffee every day and we buy coffee for every 15 days to say the least. A powdery grind loses its moisture and natural oils faster and hence loses the luscious flavour and aroma by the last day
A fine grind might leave a sludge in a French press because of the filter/sieve
Espresso machine A finer grind would do. But based on a few factors
oPump based espresso machine these are less common in India and are a bit costly. These have the muscle to push water through finer grinds. A fine grind would do a good job
oSteam based espresso machines /Brewers These have lower power and just rely on steam/vapour power based on the wattage. They would need a higher notch coarser grind
Moka Pot It is a breed between the French press and the espresso machine more towards the espresso machine. These again are based only on the steam power and will take a coarser grind much like the steam based espresso machines. Restrict the coarseness to that of fine sugar. No more, no less.
Any other methods of extraction Prefer always a bit coarser grind but keep in mind the sieve or filter you use so as not to have sludge.
About the writer:
15+ years as avid coffee drinker, Nutan has had a chance to enjoy diverse coffee experiences -
tasting coffee beans, visiting plantations, roasteries and coffee shops, trying out coffees makers, making practices & recipes. The blog is an attempt to distill & consolidate all the wonder in the coffee world, with special attention on Indian traditional versions