u're taking espresso, one shot very high strength.
the same applies to kopi-o-kau, one day cannot more than 3 cups max. otherwise digestive system cannot tahan.
me, currently 3 servings perday. strength, typical kopi-o kosong's 60% strength, in a cup size of roughly 350ml. morning, lunch, and late dinner. more than that, will have to go laosai oredi...