You'll get the best flavor of coffee by grinding whole beans just before brewing. Measure out 30 g of whole beans and place them in your grinder. Grind the beans until they're medium-fine which is about the size of coarse sugar. Burr grinders will give you more control over the grind and will make more uniform grounds than blade grinders will. Measure 3 tablespoons (about 30 g) of coffee grounds into the moistened filter. Shake the brewer a little so the coffee grounds are at an even level. Level grounds will make the coffee extract evenly. Then place the carafe with the brewer on a digital scale and set it to zero. You'll need to keep track of how much water you're pouring over the grounds, so the scale comes in handy.

TL;DR in Indonesian:
Giling biji kopi terlebih dahulu jika Anda menggunakan biji kopi utuh. Masukkan bubuk kopi ke dalam alat seduh dan letakkan di atas timbangan digital.