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Cleaning Moka Pot

The strange white growths inside my espresso maker

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The strange white growths inside my espresso maker

Hallie | Jul 30, 2002 10:45 AM

Call me ignorant. My husband and I just purchased a nice espresso maker - the traditional Italian type that can be purchased anywhere and is composed of three parts that sits on the stove top and percolates water through a sieve filled with coffee into a container at the top. What is it that is found gathering in the lower part (that you fill with water) after its been sitting around for awhile? My husband suspects its mould but I think its probably mineral/calcium deposits from the boiled water. An Italian told me never to look in there or clean it, but I just can't help myself - it looks too suspect. Thoughts from experienced espresso lovers please...

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