Breville Oracle Dual Boiler review: DesignAs you’d expect from a Breville/Sage machine, the Oracle Dual Boiler is beautiful. Breville Oracle Dual Boiler review: Grinder(Image credit: Tom's Guide)The Breville Dual Boiler uses Baratza European Precision burrs as its grinder. Breville Oracle Dual Boiler review: Espresso(Image credit: Tom's Guide)The Breville Oracle Dual Boiler has a huge range of drink ‘recipes’ you can choose from. Breville Oracle Dual Boiler review: App(Image credit: Tom's Guide)Yes, the Breville Oracle Dual Boiler has an app: Breville+/Sage+. Breville Oracle Dual Boiler review: Verdict(Image credit: Tom's Guide)The Breville Oracle Dual Boiler is a premium, high-tech espresso machine perfect for one kind of home barista.