The Coffee Roaster's Handbook: A How-To Guide for Home and Professional Roasters by Brault Len

Author:Brault, Len [Brault, Len]
Language: eng
Format: epub
Publisher: Rockridge Press
Published: 2020-08-10T16:00:00+00:00

If you are going to be handling pans or drums with hot beans in them, temperatures can reach 500°F and you need double-insulated gloves and a great deal of care in cooling the beans

SCREEN SIFTER

This is a small bean screen gauge used to quickly assess the dimensions of a lot. If it is a Size 16 screen, that means beans of 16 mm widths will not pass through the holes.

Bowls: Plan on using separate bowls for green beans and roasted beans.

Ventilation source: Ventilate smoke to the outside or use an adequate air filtration system.

Cooling device: Examples are a fan and cooling tray as well as stirring spoons, spatula, or squeegee to keep the beans moving while cooling.

Roast color chart: Printed material showing color ranges identified with roast names (Light, City, Dark, etc.) and/or temperature guidelines.

Batch Size

Most roasters have a sweet spot for the weight and volumes they are optimally equipped to roast. You may find that a drum roaster rated for 8 pounds can actually roast 9 or 10 pounds with good results. However, at some point you will note that the cascading action of the beans has changed due to the extra weight and volume, and roast quality can deteriorate.

It’s good to find your roaster’s “sweet spot” for best results at different roast levels. Darker roasts take longer to develop. If you stretch your roasting curve too long for a dark roast, the taste profile will be flat and bland, so you will want to use smaller weights than with a light roast. You might find that you can roast 12 ounces of screen 16 beans for a medium roast . . . but only 8 or 10 ounces for a dark roast. (Screen size refers to the minimum measure of holes in millimeters that beans will not fall through when sifted on the screen. Sixteen-screen beans will not fall through a 16mm hole.)

You may want to roast each type of bean separately when making blends that require different bean types with different optimal roasting curves. Most roasting devices offer guidelines on minimum and maximum weights; follow those when determining how much of each bean you roast. (For example, if you want to make 16 pounds of coffee and use 12 pounds for your base bean and only 4 pounds for the other bean, you’ll need to have a roaster that can handle a minimum of 4 pounds and a maximum of 12 pounds or more.) If your roaster does not offer guidelines, you’ll need to experiment. I like to put my roasting batches in separate bags with good labels showing the bean name, temperature or roast designation (City, Dark, etc.), and weight in the bag. I line them up in the order I want to roast them and work my way through. I have large bowls on a table next to the roaster into which I put each component of a blend until I’m ready to stir them thoroughly and bag them.

Equipment Settings

For all of your roasting equipment, it is important to always read the manuals.

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