
Please keep in mind that these filters brew a single cup of coffee in traditional volume, about 1 ounce of intense brew, generally expected to be sipped as you watch the world pass by. These are not mug-volume or large quantity brewers. To brew more coffee see our large phin.
If you insist you can probably squueze about another 15 ml if you fill it up. You can top it up again but beware that the more water you push through the ground the more bitterness is taken up from the beans. Topping up does not give the Authentic Vietnamese coffe flavour For a larger cup it's much better to add hot water or hot milk.