Tilda Parboiled Long Grain Rice As celebrated in Caribbean and African cuisine, parboiled long grain rice is prized for its robust grains that stay separate and fluffy. The parboiling process allows the rice to withstand longer cooking times in stews, soups, and seasoned rice dishes. Tilda Parboiled Long Grain Rice is lightly steamed to lock in its natural flavour, delivering firm, separate grans to elevate any recipe.