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COFFEE MAKING TIPS & PREPARATION
COFFEE MAKING TIPS
& PREPARATION
for your Breville Dual Boiler™
PRE-HEATING
Heating your cup or glass
A warm cup will help maintain the coffee’s
optimal temperature. Preheat your cup by
rinsing with hot water from the Hot Water
outlet and place on the cup warming tray.
Heating the portafilter and filter basket
A cold portafilter and filter basket can
reduce the extraction temperature enough
to significantly affect the quality of your
espresso. Always ensure the portafilter and
filter basket are preheated with hot water
from the Hot Water outlet before initial use.
NOTE
Always wipe the filter and filter holder
dry before dosing with ground coffee
as moisture can encourage ‘channeling’
where water by-passes the ground
coffee during extraction.
SELECTING FILTER BASKET
Single Wall Filter Baskets
Use Single Wall filter baskets if grinding
fresh whole coffee beans.
Single Wall filter baskets allow you to
experiment with grind, dose and tamp to
create a more balanced espresso.
Dual Wall Filter Baskets
Use Dual Wall filter baskets if using
pre-ground coffee.
Dual Wall filter baskets regulate the
pressure and help to optimise the
extraction regardless of the grind, dose,
tamp pressure or freshness.
• Use the 1 cup filter basket when brewing
single cups and the 2 cup filter basket
when brewing two cups, stronger single
cups or mugs.
THE GRIND
If grinding coffee beans, the grind size
should be fine but not too fine. The grind
size will affect the rate at which the water
flows through the ground coffee in the filter
basket and the taste of the espresso.
If the grind is too fine (looks like powder
and feels like flour when rubbed between
fingers), the water will not flow through
the coffee even when under pressure.
The resulting espresso will be OVER
EXTRACTED, dark in colour and bitter
in flavour
If the grind is too coarse the water will
flow through the ground coffee in the filter
basket too quickly. The resulting espresso
will be under extracted lacking in colour
and flavour.