| 摘要 |
A process for the production of soluble instant coffee in powder form by split extraction of ground roasted coffee in percolation cells to produce a first liquid extract from the atmospheric stage (1) and a second liquid extract from the pressure stage (2), the first liquid extract then being evaporated to a dry matter concentration above 35% by weight and the second liquid extract being evaporated to a dry matter concentration below 25% by weight, the two liquid extracts then being mixed, the evaporation vapours of the first liquid extract being condensed and concentrated and the concentrate obtained being reintroduced into the process for converting the mixture into soluble coffee powder. Application to the production of an instant coffee powder by split extraction.
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