TWO-STEP COFFEE BEANS ROASTING METHOD Russian patent published in 2020 - IPC A23F5/04 

FIELD: coffee industry.

SUBSTANCE: first degree of roasting is performed as follows. Green coffee beans are loaded into the frying chamber. Coffee beans are fried in a “boiling” air flow till the first “crack”. In frying chamber from 1 to 3 l of water is injected. Coffee grains are cooled down. Coffee grains are unloaded from the frying chamber into the "storing" bin. Coffee beans "storing" stage is carried out from 1–3 days. Second step of roasting is performed as follows. Roasting chamber is heated to the temperature at which the previous stage of roasting at the first step has been stopped. "Stored" coffee beans are loaded into the fretting chamber. Coffee grains are cooked till the second "crack". Specified volume of water is injected into the frying pan. Coffee grains are cooled down and coffee beans are passed through the rock separator. Coffee beans are unloaded into a storage bin.

EFFECT: invention ensures improvement of organoleptic indices of the ready product, slowing down of caramelization process, which allows maximum preservation of natural sugars inside the end product.

1 cl, 1 dwg