When we think of rice, we often picture familiar white grains. In reality, the world of rice is far more surprising: there are rare and premium rice varieties that stand out for their colour, aroma, texture, geographical origin and cultivation methods. Some have black, red or purple hues; others grow only in specific areas or belong to agricultural traditions handed down through generations.
Discovering these varieties means understanding just how much a seemingly simple food can reveal about biodiversity, culture and different processing techniques. From black and red rice to so-called wild rice, here is a journey through some of the most unusual types of rice in the world.
Black rice is probably one of the most recognisable varieties among pigmented rice types. Its dark colour is mainly concentrated in the outer layers of the grain and is associated with the presence of anthocyanins, natural pigments belonging to the family of phenolic compounds.
Once cooked, the black colour can develop into intense purple shades, giving dishes a striking visual appeal. Its aromatic profile is equally distinctive: depending on the variety, it may feature toasted or nutty notes. Thanks to these characteristics, it is often used in salads, bowls, fish dishes and contemporary recipes.
One of the most interesting examples is Chak-Hao, a traditional black rice from north-eastern India. Its cultivation is closely linked to its place of origin, and the product has received Geographical Indication recognition in India. It is an example of how a local variety can become an ambassador for a region’s agricultural culture.
Less striking than black rice but equally interesting, red rice owes its colour to the grain’s outer layer, which is naturally rich in pigments. Many varieties are sold as wholegrain or minimally processed rice in order to preserve their colour, texture and sensory characteristics.
The result is often a grain with a more distinctive flavour than white rice, with notes that may be reminiscent of hazelnuts and a pleasantly firm texture. It is well suited to salads, side dishes and recipes featuring vegetables, pulses and strongly flavoured ingredients.
One of the most fascinating examples is Bhutanese red rice. The Himalayan country is home to numerous traditional varieties with red pericarps, grown in mountainous areas. The relationship between variety, altitude and local farming practices makes these rice types representative of the region’s biodiversity.
Between black and red lies an entire world of purple and violet rice varieties. In some cases, the distinction in colour is not clear-cut: varieties classified as black may develop noticeable purple hues after cooking.
These rice varieties are particularly widespread in Asia and may be either non-glutinous or glutinous, the latter developing a sticky texture after cooking. Glutinous varieties are used in a range of traditional Southeast Asian desserts and dishes, often paired with coconut milk or tropical fruit.
This is an example of how rice can take on a completely different role in the kitchen: not merely a neutral base or accompaniment, but an ingredient capable of defining the colour, texture and identity of a recipe.
Wild rice also deserves a place among the most unusual examples. Despite the name under which it is marketed and its long grains, which resemble “common” rice, botanically speaking it is a completely different plant. Although it belongs to the same broad grass family, North American wild rice belongs to the genus Zizania, while the most widely consumed edible rice belongs to the botanical genus Oryza.
Its grains are long and dark, with an aromatic flavour and a firmer texture than traditional rice. It can be used on its own or blended with other varieties, particularly in salads, soups and side dishes. Its history is closely connected with the Indigenous peoples of North America, who have harvested and consumed it for centuries.
The appeal of pigmented rice and less common varieties is not simply a matter of appearance. Their sensory diversity, origins, local traditions and ability to offer different gastronomic experiences also make them particularly interesting.
Colour, aroma, texture and cooking behaviour vary from one variety to another. Choosing the right rice is therefore essential: a grain designed to retain a firm structure will behave differently from one intended for creamy dishes or from an aromatic variety.
Learning about and promoting less widespread varieties also helps keep attention focused on rice biodiversity and on the richness of an agricultural heritage that takes different forms in every part of the world.
From deep black to coppery red, from vivid purple to the long grains of wild rice, rice once again proves to be anything but a uniform ingredient. Behind every variety lies a territory, a culture, cultivation techniques and specific characteristics that determine its qualities and uses.
For Mundi Riso, understanding rice in all its forms means recognizing its differences and making the most of its potential, identifying the most suitable grain for every requirement. Even the rarest and most unusual varieties remind us of one fundamental principle: there is no single type of rice, but an entire world of rice varieties to discover, select and bring to the table.