Thua nao

Thua nao (Shan: ထူဝ်ႇၼဝ်ႈ; Thai: ถั่วเน่า; lit. 'rotten beans'), also known as pè bok (Burmese: ပဲပုပ်; lit. 'rotten beans'), is a fermented soybean product used in Burmese and Thai cuisine, particularly by the Shan, Tai Lue, and Northern Thai peoples as a cooking ingredient or condiment.[1] Thua nao is created by fermenting cooked soybeans with naturally occurring microbes.[1]

Thua nao
Thua nao in the form of dried disks
Alternative namesPè bok
Place of originMyanmar
Region or stateShan State
Associated cuisineBurmese and Thai cuisine
Created byShan people
Main ingredientsSoybeans
Similar dishesOther fermented soy products

Fermentation

In the fermentation process, soybeans are cleaned, washed, and soaked overnight.[1] The soybeans are then boiled until they are soft, and then transferred to a bamboo basket and wrapped with banana leaves, enabling spontaneous fermentation to occur.[1] Thua nao is fermented using an alkaline fermentation process, using Bacillus microbes.[1]

Uses and forms
Packed pè bok bya from Kyaukme, Shan State in Myanmar

Thua nao is either cooked by steaming or roasting, or is further post-processed.[1] It is commonly used as a protein substitute.[1] Thua nao comes in two primary forms: fresh and dried.[1] The wet, fresh form, called pè ngapi (ပဲငါးပိ; lit. 'bean ngapi') in Burmese, has a short shelf life.[1]

The dried form is typically sold in the form of sun-dried flat disks, called thua nao khaep (ထူဝ်ႇၼဝ်ႈၶႅပ်, ถั่วเน่าแข็บ) or pè bok bya (ပဲပုပ်ပြား).[2][3] The dried disks are roasted and eaten on their own, or ground into a powder and mixed with salads.[3]

Thua nao is commonly used in Shan, Tai Lue, and Northern Thai cuisine, similar to how ngapi and shrimp paste are used in Burmese and central Thai cuisine.[4][3] Thua nao moe (ถั่วเน่าเมอะ) is a Northern Thai dish consisting of fermented beans that are wrapped in banana leaves and grilled or steamed, before being stir-fried or mixed with a chili dip.[5] In Burmese cuisine, dried thua nao is fried and eaten as a condiment, used as a dry relish that includes oil, fried onions, and garlic, or tossed into a salad with onions and chilies.[6][7]

  • Sai Hsai Mao's "Me, the Little Shan Pè Bok" (ရှမ်းပဲပုပ်လေးကျွန်တော်) is a classic Burmese song.[8]

See also

References
  1. Chukeatirote, Ekachai (2015-09-01). "Thua nao: Thai fermented soybean". Journal of Ethnic Foods. 2 (3): 115–118. doi:10.1016/j.jef.2015.08.004. ISSN 2352-6181.
  2. "Thua nao khaep". Lanna Food by Northern Thai Information Center (NTIC), Chiang Mai University Library, Chiang Mai University.
  3. Bush, Austin (2018-10-23). The Food of Northern Thailand: A Cookbook. Clarkson Potter/Ten Speed. pp. 224–227. ISBN 978-0-451-49749-9.
  4. "Tua Nao - Soybean Paste, Disks". Clove Garden. Retrieved 2023-05-14.
  5. "Thua nao moe". Lanna Food by Northern Thai Information Center (NTIC), Chiang Mai University Library, Chiang Mai University.
  6. "Eating paratha with chopsticks and such other Indian-ish stories in Burma". Harper Bazar. 2022-11-21. Retrieved 2023-05-14.
  7. Aye, MiMi (2019-06-13). Mandalay: Recipes and Tales from a Burmese Kitchen. Bloomsbury Publishing. pp. 314–315. ISBN 978-1-4729-5948-5.
  8. "တေးသံရှင် စိုင်းဆိုင်မောဝ် မန္တလေးမြို့ရှိ မန္တလာဆေးရုံ၌ ဆေးကုသမှု ခံယူနေရ". Eleven Media Group Co., Ltd (in Burmese). 2020-01-03. Retrieved 2023-05-14.
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