Fresh Roast Glass Extension Tube

Raise your roasting to the next level, literally! These extension tubes will allow the SR540 and SR800 to run on lower fan and heat settings giving you more room for experimentation with your roast profile. They come with high-temperature silicone bands for the bottom and one double lip seal for the midsection. They're made to help the SR540 and SR800 with bean movement and better heat output. These tubes are to be used with the original chamber and chaff basket.

Update! Fresh Roast is now offering one size tube for both the SR540 and the SR800. Previous versions of the extension tube were split into a different size for each roaster. This tube is compatible with both roasters and allows for even more room for movement in SR540! Once installed, the new chamber height will be 10.25 inches.

*Note that while it is possible to roast larger batches with the extension tube than with the stock chamber, great care should be taken to avoid clogging the chaff collector as this can result in, at best, poor circulation of the beans and at worst, a chaff fire. If you choose to over load your roaster, be sure to do so in small increments with each coffee you attempt and monitor the chaff collector closely before continuing to increase the size of your coffee charge. This is ESPECIALLY the case when roasting natural (dry) processed coffee. Watch the video below for more info!

Fresh Roast Glass Extension Tubes include a 6 month manufacturer warranty.

For our full guide to the Fresh Roast Extension tube installation and use, check out our video:

Here is a pdf of installation instructions as well: https://bit.ly/3a9Yhnn