On 2016-03-02, Jeßus > wrote:

> They should be avoided.

Nonsense.

I've used 'em fer yrs. First to grind coffee fer paper filter-cone
brewing. Later, fer grinding whole spices, which I do often and
desire a fine powder. I also have spice grinder attachments fer my
Kenwood stand mixer and they're basically whirlybird-style coffee
grinder attachments.

The only place a whirlybird-blade grinder is not desirable is for a
proper expresso coffee grind. Espresso requires an extremely precise
and uniform grind and motorized grinders that can deliver such a grind
are quite expensive, typically running between $200-$1200. Some of
that cost is the hardened steel burrs, both flat and conical. Not
cheap.

Actually, I bought a coffee grinder attachment fer my stand mixer.
Despite it having pretty good hardened steel burrs (conical), the rest
of the attachment was made from plastic. This put a very strong
static electrical charge on all the coffee grounds and when they came
out of the grinder, they literally "flew" everywhere except in the
collection bag/box/container. The grounds would fly outta the
attachment and even stick to the back of my hands. It was crazy! I
finally hadda toss the grinder attachment, as it was useless.


nb