Brandy used to distill brandy: A cucurbit was filled half full of the liquor from which brandy was to be drawn and then raised with a little fire until about one-sixth part was distilled, or until that which falls into the receiver was entirely flammable. This liquor, distilled only once, was called "spirit of wine" or "brandy". Purified by another distillation (or several more), this was then called "spirit of wine rectified". The second distillation was made in "balneo mariae" and in a glass cucurbit, and the liquor was distilled to about one half the quantity. This was further rectified as
What Love Is Made Of three minutes and fifty-five seconds (3:55), "What Love Is Made Of" is an uptempo dance and house track that has been described as "rave-y" and "trance-y". Its instrumentation contains the sounds of pianos and synthesizers. Jordan Sargent of "Spin" observed that it continued the musical style first introduced in Katy's 2012 extended play (EP), "Danger EP", which was "straight-forward house". Idolator's Sam Lansky compared her performance in the song to recording artist Siobhán Donaghy. Critical response to "What Love Is Made Of" was generally positive: most critics noted Katy's vocal performance and commended its sound. Siân Rowe from "NME" was