The journal

Bigger drums don't make better coffee. We make the case for measuring energy stability instead of kilograms.

Choosing your first production roaster: volume math, site power, ventilation and the questions to ask before you buy.

Our electric thermal core cuts scope-one emissions without sacrificing development time. Here's the data.

The two heat-transfer modes that shape every roast curve — and how Kaldera balances them by design.

Standardising QC across shifts: sample roasting, water, grind and the scoresheet that keeps everyone honest.

One thermal platform, three raw materials. What changes — and what stays the same — when you leave coffee behind.

A walk through the Bend foundry where every drum is cast, machined, balanced and burned-in by hand.

Why the roaster you choose is a sustainability decision that starts long before the first crack.

Let's build your roastery

Interested in learning more about Kaldera engineering?