On 2015-08-24, Xeno > wrote:
> On 25/08/2015 8:08 AM, Dave Smith wrote:
>> On 2015-08-24 5:30 PM, wrote:
>>
>>> If I were John, I would send away for a replacement set
>>> of the Capresso burrs (Swiss), and figure out how to retrofit
>>> his B&D burr grinder with them. Because burrs don't last forever.
>>>
>>
>>
>> Oh sure. Those coffee beans are so much tougher than the steel burrs.
>
> Swing by the Grand Canyon next time you're in the area. Water erodes
> stone! ;-)

Coffee grinder burrs have limited lifespans:

https://www.espressoparts.com/ChangingGrinderBurrs

Many sub $150USD grinders have hardened nylon flat burrs instead of
hardened steel burrs. These should be avoided. One's best bet is to
buy a used grinder. Ebay has dozens.

I bought a Mazzer Jolly for $100 ....with brand new burrs (flat). I
then discovered the previous owner had cross threaded the burr
adjustment group's threads, so it wasn't quite the deal I thought.
Still, that's a $1000+ grinder for one tenth the cost, plus whatever
it costs me to repair the threads. 8|

nb