The ground coffee portion may range between 7.5 gr and 8.5 g
Is the batcher clean?
Is water temperature between 90-95°C ?
Is the supply between groups uniform?
Is pump pressure at 9 atmospheres?
Are the diffusers clean?
Are the filters clean?
Are the filter-holders clean?
Dark brown, mahogany
Cream colour
With stripes.
Thin cream or presence of a central hole.
Tendency for cream to withdraw rapidly towards the edge of the cup forming a black ring
Strong, bitter astringent flavour
Little aroma
