About

Pre Infusion Notes puts the basics of Pre-infusion on home espresso machines: what the gentle first stage of a shot is, how different machine types do it, and what the maker's manual says about setting it into plain words.

The pages draw on published material such as manufacturers' manuals and specifications, government and university pages, and encyclopedias. Each page lists the sources behind it at the bottom, along with the date it was last checked.

There are no ads here, and nothing is for sale.

What you read here is general information. Your own equipment's manual comes first, and where safety or the law calls for a qualified tradesperson, use one.