Home Coffee Roasting With a Popcorn Maker Alun Richards
What Have We Got For You? 1. Introduction to Home Coffee Roasting 2. Using a Popcorn Roaster 3. Buying Green Beans 4. The Process of Roasting Coffee 5. The Importance of a Grinder 6. The Importance of Consistency 7. A Few Words About Water 8. Preparing For Home Roasting
Why Me and Coffee Roasting I’m a Coffee Lover • Been grinding decent coffee for 35 years • Fell in love with Italian coffee in 1980 • Owned espresso machine for 20 years • Roasting for 1 month!
Introduction To Home Coffee Roasting
Why Roast Coffee At Home? There are three main reasons 1. Freshness 2. Taste & aroma 3. Cost
Why Roast Coffee At Home? 1. Freshness Roast beans last at their peak for about two weeks Ground coffee lasts a few hours! When you roast at home you can always have the freshest coffee available
Why Roast Coffee At Home? 2. Taste & Aroma You have the freshest roasted beans So your coffee always tastes full Can taste individual bean characteristics
Why Roast Coffee At Home? 3. Cost I can have my chosen coffee at a half to a third of the price of the SAME roasted beans. When you buy green beans, you’ll find they are a fraction of the price of roast.
Can I Really Get Good Quality? • Yes! • You can at least rival commercially produced coffee! • And you can produce it exactly how you like it
Using a Popcorn Roaster
Why Use a Popcorn Roaster? • Coffee roasting can be an expensive business • Many home coffee roasters are up to £1,000 or more Other roasters • Glorified stove-top pans
Why Use a Popcorn Roaster? • Cost: about £24 • Next cheapest roaster is about £300! • Speed – Roast within 6 mins • Convenience – Small unit – Easily packed away • Consistency – Hot air circulates beans as they roast
What Popcorn Roaster Should I Get? Popcorn roaster needs hot air vents at the SIDE • Anything else will burn the beans • If your popcorn roaster has this feature, it will work
What Popcorn Roaster Should I Get? I recommend the Severin 117803 Popcorn Maker • http://alunloves.it/severin
Why This Specific Popcorn Roaster? • It has the design you need • It works! • Many reviews on Amazon … • … for coffee roasting! • Fast delivery from Amazon
Any Popcorn Roaster Disadvantages? Small Batch Size • Around 100g (4 Oz) Fast Roast Time • Less than 6 minutes • … why a disadvantage? • Can’t really alter roast time
Any Popcorn Roaster Disadvantages? All Disadvantages Outweighed by: • Cost • Convenience • Consistency • Speed
What Else Do I Need? • A sieve • A large paper takeaway coffee cup • Kitchen scales (weighs in grammes) • A timer (use your smart phone) Optionally • A collander • A large heavy metal pan
What Else Do I Need? A large heavy metal pan • To cool the beans after your roast • A large heavy pan cools fastest • Rapid temperature reduction needed to avoid over-roasting
What Else Do I Need? Large Takeaway Paper Coffee Cup • The beans get lighter as they roast • They jump out of the roaster • If you put the plastic top on, it will melt • Cup contains the beans
Severin Alternatives In the US? • Get the West Bend Poppery • Powerful heater • No longer on sale • Need to get from – thrift sales – yard sales – eBay
Buying Green Beans
Why Green Beans? Why Green Beans? • To roast, you need green beans Green Bean Facts • They last forever! • Much longer than roasted No Such Thing as ‘best bean’ • Coffee regions are different
What Green Beans? What Type? • Arabica • High-grown Why? • More individual character • More acidic Where From? • Ethiopia • Costa Rica • Colombia
What Green Beans? Ethiopia High Grown Arabica • Sidamo • Yirgacheffe • Harrar Tastes • Complex • Fruity – Blueberry – Strawberry • Floral • Nutty • Jammy • Winey
Where Do I Get Green Beans? My Suggestion: • Start with organic Sidamo • Or Yirgacheffe Will take wide variety of roasts • Light to dark • Good coffee • Good to learn your craft
Where Do I Get Green Beans? Places Near You: • Search Google • Mail order – Search Google To Get You Started: CoffeePlant: coffee.uk.com Coffee Bean Shop: Coffeebeanshop.co.uk
The Process of Roasting Coffee
Simplified Roasting Process Simplified Roast Stages 1. Yellowing, darkening 2. First Crack 3. Second Crack 4. Burnt! Use sound and colour • Listen for cracks • Monitor darkness Use timing • Monitor time • Record results!
Roasting Process First Crack • Beans crack audibly • From 2-4 minutes • The beans darken Second Crack • 4:30-6 minutes • More heat given off • Smoke emitted • Darker colour • Oily sheen
Stages of Roast - Expanded First Crack • Cinnamon • American • City Second Crack • Full City • Vienna • French • Italian • Spanish
Latter Stages of Roast • Less bean & region characteristics • More roasted flavours • Less acidity • Then burnt flavours
Stages of Roast - Recommended First Crack • Cinnamon • American • City Second Crack • Full City • Vienna • French • Italian • Spanish
Why Stop at American or City? Good Combination of: • Acidity • Bean characteristics • Roast coffee flavour
Stopping at American or City How Do I Know? Sound • After first crack • Before second Appearance • No oily shimmer • Light/medium brown Time • More than 2:30-3:00 • Less than 6:00
Stopping at American or City Consistency is Vital! • Use guidelines initially • Make your own measurements Once Consistent • Roast to your preferred level
Stopping at American or City Popcorn Roasting Is Fast! • The roast develops quickly • A few seconds is a lot • Cooling beans fast is vital
The Importance of a Grinder
The Importance of a Grinder A Good Grinder • Is essential for home roasters! • Affects coffee quality more than anything else • Should be your first purchase
Grinder Mistakes Don’t Get a Blade Grinder! They smash coffee beans to pieces … … instead of grinding Grain size consistency is key to good coffee Blade grinders produce partial beans and dust together
Grinder Mistakes This means … Dust is over-extracted: bitter Partial beans are under- extracted: sour Bitter and sour in same cup overrides coffee taste
Grinder Mistakes This means … Blade grinders not suitable for ANY style of coffee making You need a burr grinder
Grinder Requirements What You Need • A burr grinder • Coffee ground between two burred discs or cones • Discs cheaper • Conical burr grinders better – more costly • This is an entry-level model • Krups GVX 231 • alunloves.it/krups
Grinder Requirements Manual is Fine! • Hario Mini Mill Slim Coffee Grinder • A ceramic conical burr grinder • Coffee ground between two burred cones • This is an entry-level model • Hario Slim Mini • alunloves.it/hario
Grinder Requirements Next Step Up • Dualit 75015 • Conical burr grinder • Much better consistency • Seriously consider this grinder • See the Amazon reviews • alunloves.it/dualit
The Importance of Consistency
Consistency Is Vital Consistency of What? • Consistency of coffee you produce … • Depends on consistency of process • Starting conditions are vital
Consistency Is Vital Consistency of What? • Weight of beans • Timing of roast • Accuracy of measurement You Will Need • Stopwatch in seconds – Smart phone is fine • Kitchen scales in grammes
Consistency Is Vital Consistency of Weight • Measure 100g of beans • Each time! • Process consistency results in output consistency Consistency of Timing • Time 1 st crack • Time when stopped • Keep notes! • Time varies with temperature
Dealing With Variation Variability • Different beans may perform differently • Ambient temperature affects roast times Big Tip • Keep everything else constant!
A Few Words About Water
A Few Words About Water • You can’t make good coffee with bad water • Coffee in Naples considered best in World
A Few Words About Water • Your water may be fighting with your coffee • Overly hard • Overly soft • Nasty chlorine taste • I filter with Brita filters • Gives smooth, clear clean-tasting water
Preparing For Home Roasting
Preparing For Home Roasting Order: • Severin roaster • Green coffee beans • Get a large paper coffee cup • Join my Facebook Group facebook.com/groups/homeroastcoffee/
Preparing For Home Roasting Get Out • Severin roaster • Green coffee beans • Sieve, collander • Heavy pan for cooling • Timer • Weigh scales
Preparing For Home Roasting Do • Weigh 100g of green beans • Start timer • Start Severin, drop in beans • Monitor & listen for 1 st crack • Watch colour • Cool beans fast!
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