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Boardwalk :: Forum List Coffee in General Coffee School - Basic brewing and beyond!
colin
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Re:Steaming Milk with Breville Cafe Roma - 2008/02/24 12:06 We steer people away from any machine that has a thermoblock.
And yes, you should hear some pump action when a thermoblock is working.
Sadly, what you describe is generally how a thermoblock steams milk; not well.

Here at the coffeecrew website, we think the strangest thing to hit the marketplace are these machines with thermoblock boilers.
It is old school. It did not work then and it does not work now.
Obviously, the accountants at Breville wanted to save a couple of dollars and opted for the t-block as opposed to a real boiler.
In short, a thermoblock boiler is a lot like your car radiator -- a long coil of fine copper or steel tubing wrapped around a heat source OR it could also by a piece of cast metal (mystery metal) with a labyrinth water path through it -- again heated by an external source. Thermoblocks are generally manufactured with the cheapest materials available, meant to heat small amounts of water quickly - and yes, your steam is always infused with water.

Here is an excellent article on thermoblocks from one of Australia's best coffee experts.

Our adage: No one who loves espresso coffee would let their water or coffee come in contact with one of these budget nightmares! Colin is the Senior editor and creator of the CoffeeCrew.Com Website
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      Topics Author Date
    thread link
Steaming Milk with Breville Cafe Roma
tom 2008/02/23 06:34
    thread link
thread linkthread link Re:Steaming Milk with Breville Cafe Roma
colin 2008/02/24 12:06
Boardwalk :: Forum List Coffee in General Coffee School - Basic brewing and beyond!

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