27 fl. oz. French Press Coopper. French press is one of the easiest, least expensive ways to make great coffee.The French press makes coffee by steeping the grounds in hot water, and then pressing the grounds out. Helpful Tips for using French Press: There are two things that really ruin French press coffee: water temperature boiling water that scorches the grounds, or tepid water that doesn't extract fully and badly ground coffee with too much fine grit that makes the pressed coffee muddy and bitter.