While different espresso machines will have different factory recommendations for caring for your unique machine, there are some standard practices to be aware of.  First, if your machine has a steam wand, you’ll always want to purge it before and after use to keep it free of blockages and buildup. Next, after brewing an espresso shot, you will always want to run the hot water through another brew cycle to flush the group head.  And finally, always ensure you only use quality filtered water in your machine. Tap water contains minerals that cause build-up in your machine that can clog it over time. Not only will the quality of your water significantly change the taste of your espresso, but it can also damage your machine.