Cleaning the I-Roast 2 Coffee Roaster

I had delayed and delayed cleaning my I-Roast 2 coffee roaster until the day I noticed that about 5% of the beans were still yellow and had not roasted. Having a seasoned roaster is good, but at certain point a home coffee roaster needs to be thoroughly cleaned. Although I used an I-Roast 2, the following information will also apply to the original I-Roast Coffee roaster.

Before we go through the cleaning methods, let me break down the I-Roast 2 into its components. From top top bottom:

  1. Chaff collector lid – top part
  2. Chaff filter mesh – circular ring under the lid
  3. Chaff collector base – fits on top of the roasting pot
  4. Glass roasting pot – where the beans go
  5. Power base assembly – the guts of the roaster that plugs into the wall

The power base assembly (#5) can be cleaned with a paper towel or wet wipe. Nothing more. Do NOT soak the power base assembly in water or put in dishwasher. The rest of this article will focus on cleaning the other parts (#1-4).

From left to right: Chaff collector lid (#1), Chaff collector base (#3), Chaff filter mesh (#2)

The I-Roast 2 glass roasting pot (#4) before the clean.

As you can see from the photos, my coffee roaster was a mess. I ended up using three different cleaning methods to bring back the shine. All three of these methods are valid. Use one or a combination. Whatever works.

#1 Puro Caff or Espresso Machine Cleaner

I soaked the parts in a bucket of hot water, poured in some Puro Caff and waited twenty minutes. With a rag I was able to get it somewhat clean. Not clean enough though. It was time to bring out the big gun.

#2 Oven Cleaner

At this point I sprayed the parts with an oven cleaner. After letting it sit for 20 minutes, I was able to remove almost everything. It just needed a tiny bit more cleaning.

#3 Dishwasher

I placed all the parts on the top rack of the dishwasher and ran a cycle. That was all it needed to get its “almost new” look back.

Almost new! Time to start the seasoning process all over.

Having a roaster that is too clean or too dirty is not ideal. It is that middle ground where it is seasoned that will yield the best results. This is why I waited until I started getting uneven roasts before I did the three stage cleaning.


Puro Caff Espresso Machine Cleaner – Amazon product page.

I-Roast 2 Coffee Roasting Guide – INeedCoffee article by Chris Arnold.

Michael Allen Smith

Michael Allen Smith fell in love with coffee while attending college. Shortly after graduating college, he found himself in the Tampa Bay area far away from the good coffee he had at The Ohio State University. That is when he starting home roasting coffee. Less than a year later in April 1999, he launched the coffee website has been going strong ever since with hundreds of articles and tutorials submitted by over one hundred contributors.

In 2007, Michael moved to America's coffee capitol Seattle, Washington. He has visited close to three hundred different coffee places in Seattle, Portland,Vancouver and San Francisco and met many of the top roasters and baristas in the country. Since 2009, Michael has been the Organizer of the Coffee Club of Seattle, which is a Meetup group of over 800 coffee enthusiasts. Besides the social aspect of the group, the Coffee Club of Seattle partners with local coffee professionals for educational events such as coffee cuppings, brewing demonstrations and roasting tours.

Unrelated to coffee, Michael has a personal blog at which covers several topics including fitness, cooking and economics.