[Stoves] update: coffee-grounds briquettes

[David Young]

On Wed, Aug 27, 2014 at 06:31:05AM +0800, Crispin Pemberton-Pigott wrote:
> Dear David
> 
> Thanks for the update. Do the pucks feel really dense even when dried?

They luck fluffy but they have some heft to them.

The three in the photo (see attachment) weigh about 94 grams.  Their
diameter is about 6cm.  All three stacked up were about 8cm tall.  So
their density is about 94g / (pi * (6cm / 2)^2 * 8cm) ~ .4g/cm^3.
(Check my math.)

Dave

-- 
David Young
dyoung at pobox.com    Urbana, IL    (217) 721-9981
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