[Homeroast] aluminum for roasting

Yakster yakster at gmail.com
Tue Apr 13 13:57:38 CDT 2010

I remember seeing a picture of a Calrod espresso heating element (coil type,
I believe) that had a superficial anode attached to it... someone was asking
what it was.

Here's a link to a Home-Barista post showing a sacrificial anode on a
heating element. I don't think this is the same post I remember, but it's
one of the first that came up in a web search.  There's a picture of the
anode in the message below.


My uninformed guess is that many espresso machines probably forgo the anodic


On Mon, Apr 12, 2010 at 9:41 PM, Phil Palmintere
<phil.palmintere at gmail.com>wrote:

> I hadn't thought about it until now; maybe I'm getting old, or maybe it's
> the exposure to aluminum.
> Hot water heaters we all have in our homes are stainless steel tanks with
> an
> aluminum rod suspended inside -- it is called the "sacrificial anode"...
> So... do espresso machines have sacrificial anodes in their boilers?  My
> guess is they don't.  Has anyone had a boiler go bad?
> --phil

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