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Brewer
Three motors simplify the mechanical moving components rather than using gears and leavers. This means that we reduce mechanical components which can break, and give our customers problems. The whole brewing unit is intelligently made to ensure easy service. You simply loosen a single finger screw, and the whole brewing unit can be pulled out and replaced in under 30 seconds.
As the brewer unit incorporates both motors, a heater and circuit boards, you almost get a new coffee machine in just seconds, reducing any possible down time to a minimum.
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Flash-heater
The flash-heater makes all the difference. Rather than preheating a large quantity of water which with time just gets worse, we heat fresh cold water in just seconds. This aids to the taste in our coffee and you ask how? CO2 controls the waters ability to contain minerals, which is due to the carbonate system and means all minerals will be non-existent when the CO2 is gone. This does not happen while heating the water, but rather keeping the water at a boiled stage, which most coffee machines do. By instantly heating it we preserve some of the minerals, and this will give a better taste, as well as give better yield of the coffee. A cup of coffee contains 98% water, so therefore the water quality is extremely important.
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Brewing chamber
The hot water is transported no more than 5 cm to enter the brewer chamber. This is preheated by the flash-heater, which means, that the water’s heat will not be absorbed by the environment as it is the same temperature. This is very important to make a hot drinkable beverage as the liquid will lose heat once it is poured into a cup.
Temperatures are electronically maintained and extremely consistent, meaning that all the way through a shot of espresso, there are no temperature drops and resulting in a pristine espresso experience. '
When the water hits the puck (coffee grounds), the water should be between 92-95 degrees Celcius to get the right extraction and continuously maintained throughout the brew.
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The actual brewing
So how do we make a perfect cup of coffee? Well this requires the same elements as a barista; a good grinder, precise tamper pressure, flat equal levelled coffee grounds, and good quality water with the correct temperature, which all have to meet in equilibrium.
The tamper pressure, normally set to 20 kg, is adjustable to ensure it can be varied compared to the amount of coffee. The grinders are also electronically controlled for correct dosage.
All these processes have been developed in collaboration with various renowned barista’s.
Correctly dosed and adjusted coffee is dispensed, the top piston closes and the bottom piston moves up to create an exact tamper on the grounds. Water is then pre-infused into the chamber to soak the puck and start the extraction process.
Finally the pump starts and creates a consistent 9 bar pressure.
Nothing else than the right parameters then leaves the coffee smoothly running in a velvety dark liquid stream - and a real 25 second espresso is brought to your cup.
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The unit & materials
So how do we ensure a long lifespan? We firstly have created an extruded anodized aluminium chassis. With a stainless steel brewing chamber and a top plate covered in teflon for easy cleaning. With high quality components such as our flash-heater, we ensure this unit will last 100.000 cups between service. Below are the main materials we have used in the TopBrewer:
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