Can you make a smaller batch of espresso than the pot can hold?

Answer 1

Espresso makers use steam pressure to brew. The steam "extrudes" through finely ground coffee, roasted extra dark (an espresso roast), that has been measured and pressed into a fine mesh filter. The filters for most home espresso makers come in either a "single" or "double" size. If you use a double but only use enough grounds for a single just make sure that you tap it down properly. Otherwise, the correct pressure may not be achieved and you'll end up with inadequate extrusion. Basically, just mildly flavored water, rather than thick, rich espresso. If you need information about a specific brand of espresso maker you'll need to provide a little more information.