The quality of coffee served throughout S.E.Asia has traditionally been awful. Too many places, and horrible chain coffee houses, seem to believe that everything American is good, and slavishly follow the horrible example of Starbucks with their dishwater in a paper cup!
Forty Hands Cafe is very hard to find it is in Yong Siak street (near Tiong Bahru market], just hope that you get a ta\xi driver who actually knows his way around.
It is not a particularly attractive space, always full and you will be lucky to get a plastic stool let alone a comfortable chair at a table, but the place buzzes!
Actual baristas, a first for Singapore, do actually attempt to produce quality coffee, although coffee shold never be served in a GLASS! Yes, I know that traditional Latte in Italy is served as a short black in a tall glass [hot milk and froth on the side in a small stainless steel jug], but that glass in inside a metal frame, with handle on the side.
Breakfasts are also served here, but they tend to be more of a brunch with all the traditional egg dishes [benedict, etc] and an array of sandwiches, but it is the coffee that people come here for.