Heat treatment with spent coffee grounds adsorbs acrylamide from coffee extract while preserving flavor in soluble coffee production.
A low-temperature extract is membrane-filtered before drying to retain flavor and produce stable, low-hygroscopic instant coffee powder.
Controlled reduced-pressure distillation segments coffee extract to prevent aroma loss during concentration, maintaining flavor balance.
Controlled thermal processing drives acid-generating reactions to completion, preventing pH drift and flavor degradation in liquid coffee concentrates.
Passing liquid coffee extracts through a cationic adsorbent bed reduces acrylamide content by over 50% while preserving organoleptic characteristics.