Yes, you can. It'll take longer but it's possible. How to make whip coffee without a hand mixer: - By hand: This will take some arm muscle but it will work with patience. Just use a whisk and continue to beat the coffee mixture until lighter in color and soft peaks form. - With a handheld frother: This method is quicker than doing it by hand. I would place the coffee mixture in a narrow container then froth continuously until the consistency looks right.