The Inheritance Journal

Roasting

Roast levels explained for coffee drinkers, and practical guides for anyone starting to roast: green coffee, batch sizes, permits, ventilation and scaling up.

22 articles

What Zoning Does a Coffee Roastery Need?

Roasting is a manufacturing use, which rules out most storefronts before rent ever comes into it. What the land-use table decides, what the building code calls a roast...

Why Are My Coffee Beans Oily?

The oil on a dark bean was inside the seed all along. What pushes it out, and why a sheen tells you how long the coffee has been sitting rather than how it was roasted.

Should You Roast Robusta?

The bitterness in robusta arrives in the seed rather than in the roast. What that means for a small roaster deciding whether to buy a lot, and the cheapest honest way ...

What Is Coffee Chaff?

The papery flecks in your cooling tray are silverskin, the one layer of the coffee fruit that travels all the way from the farm to the roastery. Here is what it is mad...

What Makes Roasted Coffee Brown?

The browning reaction needs a sugar and an amino acid, and what it leaves behind is not caramel. What is actually in a green coffee seed, what survives the roast, and ...

Why Is Decaf Coffee Harder to Roast?

Decaf is harder to roast because the seed was processed a second time before it reached you, and that pass took density and structure out of it. Royal Coffee and Sweet...

How Long Should Coffee Rest After Roasting?

Eight sources publish eight different rest windows, from 12 hours to past two weeks, and three of them blame roast level while disagreeing about which direction it run...

When Should You Upgrade Your Coffee Roaster?

You've outgrown your roaster when your monthly volume needs more roast hours than your week can hold. Here is how to compute that threshold from two numbers you alread...

How Long Does Green Coffee Last?

Green coffee keeps about a year from harvest, and the ceiling is not the number you need. The useful answer is a quantity: how much green you can finish before the win...

What Has to Be on a Coffee Bag Label?

Federal law requires three things on a bag of coffee, and a fourth once it has more than one ingredient. 21 CFR 101.5 names three roles, and one of them is built for t...

What Is Light Roast Coffee?

A light roast comes off the roaster just after first crack, and it is not stronger: a 2024 study measured 134 to 165 mg of caffeine at every roast level.