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Frequently
Asked Questions (FAQ)
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Q:
Is decalsification of my coffee
machine necessary in Thailand? How often
do I have to decalsify my machine?
A: Water in
Thailand is very soft and calcium, therefore,
is not a big problem. Decalsification, however,
is a cleaning and purification process that protects
the inner parts of your coffee machine and makes
it last longer.
You should decalsify your machine whenever
your digital display or alarm lamp tells you to
descale it. For manual machines with no automatic
warning, we recommend decalsification once a month
or even more often, if you heavily operate your
coffee machine or use hard water. The
decalsification process varies from model to model.
Please follow the instructions of your manual
or, if you encounter any problems or need more
explanations, contact us at:
http://www.boncafe.co.th/services/sv-emergency.htm.
Our BonCalc
Descaling Agent is a mild decalsifying
agent, especially made for decalsifying coffee
machines used in Thailand.
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Q:
How often should I clean my coffee machine?
Which parts need to be cleaned?
A: A coffee
machine is a household machine that should be cleaned
after use. We recommend daily cleaning
of the brewing unit, coffee outlet, cappuccino
unit and bean container for hygienic reasons
and fresh and better taste of coffee serving (see
pictures below). Please follow the instructions
in your user manual. |
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Q:
What kind of water should I use to
make a good cup of coffee?
A: The main
factors that can affect the coffee taste are the
freshness of coffee, proper condition of the machine
and clean water.
Normal, cold drinking water is best for making coffee.
Mineral water is not recommend because it contains
minerals such as Calcium, Calcium Carbonate, Magnesium
and Magnesium Chloride that turn into solids when
the water is boiled. The solid objects will stuck
inside the boiler and its connection tubes. |
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Q:
When I do not use my espresso machine, shall I leave
the filter holder hooked to the brewing group or
put aside on the drip tray? |
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| A:
You should leave the filter holder hooked
to the brewing group. Never leave the filter
holder off the group, not even on the grid. |
In
order to make good espresso, one of the 'tricks'
or, if you like, 'practices' that the barman
must be careful to follow after making coffee,
is not to remove the filter holder and the
coffee grounds in it until the next coffee
is made.
Many barmen follow this correct procedure
by instinct. Many, but not all. There are
also those who, after serving the coffee,
immediately throw the grounds away into the
bin and leave the filter holder on the grid,
without replacing it into the unit, leaving
it in readiness for the moment when another
customer orders an espresso.
This procedure is absolutely wrong and can
affect the quality of the next coffee to be
served.
Those who immediately remove the coffee grounds
after serving an espresso generally do so
in order to save time, in other words, to
ensure that the filter holder is already clean
and ready for the next coffee. But this harms
the espresso yield. This is the reason why.
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There
is in fact a reason why the filter holder
must always be attached to the unit. In this
way the thermo-siphon system in the unit ensures
that it remains hot, guaranteeing a temperature
of 90 degrees.
This ensures that when the coffee is produced,
the water circulates around the system, including
the filter holder, at the correct temperature
of 88-92°.
On the other hand, if the coffee is made using
a filter holder that unit a few moments before
has been detached from the unit, that filter
holder, as it is cold, will cause a reduction
in water temperature and therefore a loss
in quality during the extraction of the coffee.
The result will be a lukewarm rather then
a hot cup of coffee and a reduced extraction
level. |
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Q:
Can you give me more details for the boiler of the
coffee machine? |
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A:
In Automatic heavy duty coffee machine, all kinds
of big machines have 2 boilers that are independent
heating up. |
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- Coffee boiler, is heat the water for making
coffee only! (88°C-92°C)
- Steam boiler, is heat up the water to steam
(118°C-122°C)
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Hot water: hot water
is made from steam mixed with fresh water with a
optimized ratio. That is why we can operate the
coffee and steam/hot water in the same time without
any problem but if we operate steam and hot water
at the same time, the pressure of steam will be
a little bit less and if we use with a long period,
the temperature of hot water will be dropped too.
In Traditional coffee machine (Piston type),
most of traditional coffee machines have 1 big
boiler for heat up hot water and steam (120°C).
Making coffee: they use fresh water run through
boiler for making coffee (heat exchanger 85°C-90°C).
If we operate hot water and steam at the same
time, the pressure of boiler will be dropped quite
fast (depend on the capacity of boiler) and effective
to coffee (Temperature is too low).
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For
further questions or more information, please contact
us at: technical.service.bkk@boncafe.co.th. |
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