It’s all I drink. It’s a good exercise in staying prepared, cause if I run out it takes over 18 hours until my next batch is ready.
Max course grind, 284g of cheap dark roast beans, soak for 18+ hours. A little cream and simple syrup. Delicious. Makes enough concentrate to last about 3 days between my wife and I.
The liter of concentrate lasts us about a week to ten days. It definitely tastes better/fresher the first day or two, but not enough to bother making smaller batches.