When using drip coffee machines, stick with medium to fine grinds of coffee. Be sure to only add the right temperature water to the mix. This means water temperatures that are between 195 degrees and 205 degrees to ensure the best coffee ground extraction.
And if you want to be following the most expert rules for using drip coffee machines, you should also remove the grounds from the filter before the last couple of drops of water have filtered through. This will prevent your java from being over-extracted and overly bitter. One last thing. Before you serve this delicious coffee to yourself or to a guest, stir it.