An Unexpected Invitation from Portugal

Chris and Doran are joined by Lance Hedrick to discuss, "A new Coffee Brewing Control Chart relating sensory properties and consumer liking to brew strength, extraction yield, and brew ratio", appearing in J. Food Sci., 2023, 88, 2168.

Today's paper is an attempt to revise and improve upon the seminal work of Lockhart: the empirical observation that coffee strength (%TDS) is related to the beverage refractive index. But do we need a new control chart?

The article can be found here: https://doi.org/10.1111/1750-3841.16531

About Lance: Lance is one of Youtube's most loved coffee professionals. He is also a competitor and coach in competitive coffee, handling the launch of Onyx EU, and an up-and-coming chess player.

Introduction preamble: Heisenberg