Learn

Notes from the roastery: what we buy, how we roast it, and what we have learned building coffee programs on the Gulf Coast.

Tagged “sourcing” · see all of Learn

Origins

What Is a Green Coffee Offer Sheet?

A green coffee offer sheet lists lots, scores, and prices up for sale. What saying yes to a line actually commits a buyer to, and why we still cup every sample before ...

Origins

What Is a Coffee Differential?

The 'C price' in every market report is a benchmark, not what a lot of green coffee costs. What a coffee differential actually is, with real green-coffee and exchange-...

Origins

What Is Yeast Fermentation in Coffee?

Fermenting coffee with wild microbes is the default. A growing number of producers add a chosen yeast strain on purpose, and two peer-reviewed studies measure exactly ...

Taste

What Is a Clean Cup in Coffee?

A clean cup has nothing to do with how sanitary the kitchen is. It's what's left after quakers, broken beans, and fermentation faults get caught before the roast.

Origins

What Is Lactic Fermentation in Coffee?

Most explanations credit Lactobacillus for a lactic-processed coffee's creamy tang. A 2019 peer-reviewed study says the real story runs through two different bacteria,...

Origins

What Is the Timor Hybrid?

One 1920s arabica-robusta cross gave coffee its rust resistance. The genetics behind Catimor, Sarchimor, and two coffees on our own shelf, explained.