We recommend using a minimum of 2 capsules per cup of coffee for Nespresso and Espressotoria machines. The capsules hold slightly less coffee than disposable capsules and for a good strong coffee, using 2 filled capsules is best. The Pod Star Double pack is cheaper than buying two Pod Star Single packs.The Aldi K-fee / Caffitaly capsules hold slightly more coffee but we recommend using 2-filled Pod Stars for a strong  coffee.