Freshwater fish fermented in salt and rice bran for a year, intensely pungent, and the defining seasoning of Isan cooking. It is made in clay jars after the rice harvest, and the version stirred into som tam divides Thai diners more sharply than almost any other ingredient.
It is a year-long anaerobic ferment of raw freshwater fish, kept safe only by a salt ratio measured against the catch — and Mekong-basin freshwater fish carry liver fluke, which is exactly why the traditional practice cooks pla ra before eating.
What goes into it
- freshwater fish
- coarse salt
- rice bran or roasted rice powder
How it is made
Fish are gutted, mixed with a heavy proportion of salt and rice bran, and packed into large clay jars, weighted and sealed. Over a year the flesh breaks down entirely into a thick, chunky, powerfully aromatic mass. Traditional practice cooks it before eating, though not always.
How long it takes: a year or more in the jar
How it is eaten
Simmered into som tam pla ra, laap and jaew, or boiled into a dipping sauce.
History
The defining seasoning of Isan cooking, made in clay jars after the rice harvest; the version stirred into som tam divides Thai diners sharply.
Frequently asked questions
What is Pla Ra?
Pla Ra is a fermented & pickled from Thailand: freshwater fish fermented in salt and rice bran for a year, intensely pungent. The defining seasoning of Isan cooking, made in clay jars after the rice harvest; the version stirred into som tam divides Thai diners sharply.
How is Pla Ra made?
Fish are gutted, mixed with a heavy proportion of salt and rice bran, and packed into large clay jars, weighted and sealed. Over a year the flesh breaks down entirely into a thick, chunky, powerfully aromatic mass. Traditional practice cooks it before eating, though not always. It takes a year or more in the jar.
Can I make Pla Ra at home?
No, and the atlas gives no method for it. It is a year-long anaerobic ferment of raw freshwater fish, kept safe only by a salt ratio measured against the catch — and Mekong-basin freshwater fish carry liver fluke, which is exactly why the traditional practice cooks pla ra before eating.
What goes into Pla Ra?
Freshwater fish, coarse salt, rice bran or roasted rice powder.
How is Pla Ra eaten?
Simmered into som tam pla ra, laap and jaew, or boiled into a dipping sauce.
