Why chefs pick RB2: Callebaut’s Ruby RB2 amplifies what ruby chocolate is known for - a brighter ruby colour and a punchier, berry‑like tang with refreshing acidity - in easy‑melt callets that handle like classic couverture. With medium (3‑drop) fluidity, RB2 is versatile for moulding, enrobing, ganache, mousses and glazes. Use it pure when you want the colour and taste to shine, or pair it with citrus and red fruits for high‑impact desserts.