Make a better cup of coffee!

What is a Thermoblock?

A thermoblock or thermocoil takes water from the reservoir in an espresso machine and heats it on the fly, versus heating up a full boiler of water. This technology is commonly seen on home espresso machines, where it manages either the brew function, steam function or both. The benefit of a thermoblock is that it doesn't take as long for your machine to heat up for either brew or steam; however, the drawback can be that your temperature for brew or steam is not quite as consistent as you might like.

Gail introduces us to a few different varieties of thermoblocks/thermocoils and shows how they compare to a standard boiler (specifically, the internals of the Breville Dual Boiler).

Special thanks to Breville for providing the sample internals for this video!

Share This Story

17 thoughts on “What is a Thermoblock?”

  • [...] between the older heating tech and the new heating tech (if you’re into that kind of thing) in this video. Then watch Gail take us through the BES840XL’s features and demonstrate functionality. The [...]

    Reply
  • Paul

    What makes the thermoblock go tick-tick-tick (or wham-wham-wham) as it puts water/steam out?

    Reply
  • David

    Wow thanks for the tutorial!!!!

    Reply
  • Maureen Luby

    I have an older model expresso machine from Starbucks, it is no longer available. I believe that the problem with my machine is the Thermoblock coil. Can these coils be repaired? The machine I have has not been used all that much so this should not have happened. Please can you give me advice on this issue? thank you, m.luby.

    Reply
    • Kat

      The Starbucks Barista machines were a variety of private label espresso machines that are still available under their original manufacturer brand. Most often they were Saeco semi-automatics (either the Aroma or the Via Venezia) or Saeco Superautomatics (very similar to the Incanto) and they can be repaired. What's going on with the machine?

      - Kat

      Reply
  • [...] wonder what’s going on under the hood of your espresso machine? In follow-up to our video on thermoblocks, we asked Gail to show us different styles of boilers and walk us through how they [...]

    Reply
  • Paul

    vERY INFORMATIVE. tELL ME, DOES THE bREVILLE EXPRESS UNIT HAVE THAT CIRULCAR THERMOCOIL, OR THE OLDER TWO-PIECE DESIGN?

    Reply
  • Thomas

    Hi Kat,

    Thank you for the video, I really appreciate it. If I would like to purchase a thermocoil like that, where would i go to get one? And what type of pumps would I need to get to pump water?

    Thank you so much!!!

    Thomas

    Reply
    • Kat

      I don't know where you'd purchase one separately; these are manufactured specifically for Breville wherever they produce their machines. I doubt they have them available for general sale as it's a tech advantage for their machines over other models.

      - Kat

      Reply
  • Sabrina

    Hi Gail!
    Do you have any video with how do these units measure the water volume? Do they count electrolytes, or just knowing the debit it measures the timeā€¦I own BES870 (thermo coil)

    Reply
  • Sergio

    Is there a way to find the thermoblock just by itself?

    Reply
  • Darrin J Schuler
    Darrin J Schuler April 3, 2016 at 12:08 am

    Hi Gail,

    You had mentioned that the thermoblock for the Barista Express is an aluminum block lined with stainless steel and that the stainless part is lined with teflon. Is that correct? Love the machine but the teflon is a major concern?

    Reply
    • Felicia Kloewer
      Felicia Kloewer April 4, 2016 at 5:13 am

      Hi, Darrin,

      We gave Breville a call to confirm if there was a Teflon coating in the Thermocoil and they said there wasn't in the Barista Express!

      Great question!
      Felicia

      Reply
Leave a Reply
close

Join our email list

GET 10% OFF ONE ITEM

Be the first to learn about exclusive offers and new products - starting today!

 

JOIN
*Some exclusions apply. See coupon for more details.