Odisha (and parts of Jharkhand, Chhattisgarh, coastal West Bengal); ancient in origin, documented in texts from the Jagannath temple tradition
Pakhala (ପଖାଳ) is the Odia culinary institution: cooked rice left to ferment in water overnight (or for several hours), producing a slightly soured, probiotic-rich dish that is the staple food of Odisha and parts of coastal Bengal and Jharkhand during summer. The fermentation produces lactic acid that gives the dish its characteristic mild sourness and simultaneously improves digestibility and gut flora. Pakhala is eaten cold or at room temperature (refrigerated pakhala is saja pakhala, ସଜ ପଖାଳ; fermented is basi pakhala, ବାସି ପଖାଳ) with fried fish, dry vegetable preparations, or raw onion and mustard oil — accompaniments chosen for their ability to cut the blandness of the water rice.
Eaten as the primary meal, particularly in summer when its cooling, digestive properties are most valued. The slightly sour water is drunk alongside the rice. Best enjoyed with a simple complement of fried fish, roasted papad, and raw onion.
{"Use cooked rice from the previous day, not freshly cooked — day-old rice begins the fermentation process more rapidly and the texture is correct","Cover the rice with enough water to fully submerge plus 2–3 cm above — the fermentation produces CO2 that slowly releases; sufficient water prevents drying","Ferment at room temperature for 8–12 hours in summer — in winter, the same process takes 16–24 hours due to reduced microbial activity","Add a small piece of leftover pakhala water (জ, jia — the fermented water) as a starter culture to accelerate and direct the fermentation"}
In coastal Odisha, the most prized accompaniment is dried salted fish (enduri, ଏଣ୍ଡୁରି) alongside raw onion and mustard oil — the combination of fermented sour rice, salt-dried fish, sharp raw onion, and pungent mustard oil is a complete flavour experience unique to Odia culinary identity. Pakhala Dibasa (ପଖାଳ ଦିବସ — World Pakhala Day) is celebrated annually on 20 March in Odisha.
{"Using freshly cooked hot rice — it cooks the water and bacteria rather than beginning the fermentation; always start with cooled, day-old rice","Fermenting in a sealed container — CO2 produced during fermentation needs to escape; cover loosely with a cloth","Insufficient water — the rice above the water line dries out and ferments unevenly"}