Deli brew coffee system offers you two solutions:
One is use DELI special coffee basket to hold the coffee grounds,by this method,the basket works as the first filter,and the basket is very helpful after you finished the extraction,you can remove the spent coffee grounds very easily and quickly.
Another one is stainless steel wedge wire false bottom to support and hold coffee grounds.
If you get Deli brew coffee system,then you have the above two solutions at the same time.