The Coffee Roaster | Coffee Catalogue | CONTI Espresso Machines
Fine Tuning Ground Espresso Coffee Dosing
Espresso machines must be "tuned" for your cup sizes.
To most people it might come as a surprise that espresso machines require some "tuning" before they can most successfully be used as a business appliance. There are many different attributes of the espresso machine that can be modified such as pump pressures, boiler temperature(s), etc.
This portion of our espresso machine advice section deals with fine tuning the ground coffee dosage to allow you to produce a proper strength beverage in the crockery or take/away cups of your choice.
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The cup on the left below is a traditional European cup (150ml) for which espresso machines were originally designed. The cup on the right is of a larger size (250ml) and more frequently used outside of Europe. |
Filter baskets (below) are designed to hold differing amounts of ground coffee. The filter baskets below hold (left to right) 7, 12, 14 & 21 grams of coffee. |
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The European cup above will contain approximately 150ml of coffee beverage and require 7-8 grams of ground coffee to achieve "continental strength". The cup on the right will hold approximately 250ml of coffee beverage and requires 11.7-13.3 grams of ground coffee to achieve the same strength.
Large take/away cups, French Bowls, etc. frequently require 21 grams of ground coffee to produce a desirable beverage. Many espresso machines are designed with portafilters that will not accept a filter basket larger than 14 grams. Hence, multiple brewing cycles are required when making these beverages. This reduces the speed and efficiency of the Barista and increases the customer waiting time.
The espresso machine will be one of your most expensive business assets. There are many attributes you should consider before purchasing. It is important that your machine have the greatest flexibility so that your use of it can adapt to the changing requirements of your business.