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You may notice some rust on the burrs. This is normal and will disappear
after a small amount of coffee has been ground. To remove the rust and
season the burrs, grind 1/4 pound of coffee and discard.
Initial Operation
See the bottom of the grinder to determine the proper voltage for the
grinder. Place the PRECISO on a level surface and plug into a correct
voltage, AC outlet only. Remove the lid from the hopper by lifting off.
Pour the desired quantity of roasted whole coffee beans into the hopper
up to a maximum of 8 oz. Replace the lid. Ensure the ground coffee bin
is fully inserted.
Setting the Macro and Micro Grind Adjustment
Slowly rotate the bean
hopper clockwise or
counter clockwise to
align the indicator on
the bean hopper with
the desired number
setting on the Macro
grind scale. Select the
correct grind for the
brew process you are
using. (Note: when-
ever moving the Macro
adjustment to the left(ner direction), the grinder should be running.)
Set the Micro adjustment lever to the middle of the scale. Grind a small
amount of coffee. Check the particle size. If the particle size is close to
what you desire, now use the Micro lever to “ne tune” your grind size (A
is ner, K is coarser). If the particle size needs a big change then adjust
the Macro adjustment to a new position then ne tune with the Micro
lever. The full range on the Micro scale is equal to one “click” or position
on the Macro scale. With both the hopper and the micro adjustment,
moving right (counter-clockwise) produces a bigger particle size and left