11 Mar 2020 --- Countering off-notes is a prominent challenge faced by formulators working with bitter compounds, protein-enriched recipes and other special ingredients. Responding to this, Brazillian flavor house Duas Rodas has launched Bitter Block, a natural aroma that rounds out flavors and synergistically eliminates bitter notes in drinks, such as caffeine supplements, those with high protein content and ready-to-drink teas.