Partially digested plant matter and digestive fluid from the small intestine of cattle or buffalo (also referred to as เพี้ย, ขี้เพี้ย, or, in liquid/broth form, น้ำเพี้ย), added as a bittering seasoning to larb, offal soups and other Northern Thai and Isan dishes; the portion nearest the bile duct opening (เพี้ยหัวดี) is considered the more liquid, less fibrous, better-quality grade.
เพี้ย (phia), ขี้เพี้ย (khi phia), and น้ำเพี้ย (nam phia), which refers to the liquid form, are words for partly digested contents remaining in the part of the small intestine of cattle or buffalo between the openings of the bile and pancreatic ducts. The introduction to a nutrition paper distinguishes the part nearest the bile duct as a part considered 「良質」 (in translation: "good quality"), while a food-culture article describes it as liquid, with little fibrous residue and a mellow bitterness. The nature of the material itself, intestinal contents from slaughtered livestock, connects this entry with bitterness from the outset.
A proximate-composition analysis of cattle intestinal contents collected at slaughterhouses and butcher shops in Sakon Nakhon Province on 3 occasions—2021-8, 2021-12, and 2022-4—reported mean values of 87.02±0.10% moisture, 1.75±0.06% crude protein, 0.80±0.13% crude fat, 6.35±0.15% crude carbohydrate, 2.27±0.08% crude fiber, and 1.81±0.22% crude ash. Only cattle were studied; the same measurements were not made for khi phia from buffalo or pigs.
The paper's introduction says khi phia is used to add bitterness to raw-meat larb and koi, chili dip jaew, and meat stew om. A food-culture article adds that it is used in soi chu, a dish of sliced raw meat, and a bitter chili dip, and depicts it as routine for northeastern Thai restaurants to ask guests whether they want bitterness added. An individually posted recipe says nam phia may be added to a bitter offal soup to taste. A record of water-buffalo larb among the Thai Lue in neighboring Laos also gives a procedure using the same ingredient, but does not itself explicitly describe the taste as bitter.
The section farther along the intestine is described as watery, with more residue and a stronger smell, so preliminary boiling before cooking is recommended, while some cooks are also described as using it raw without that step. A record of larb khom in Phrae Province lists bile as an alternative bittering ingredient to intestinal contents, and a northeastern Thai food-culture article likewise treats the two together as sources of mellow bitterness. Most of these descriptions, however, are secondhand citations in article introductions or food-media pieces, not the authors' own primary surveys, and there is no numerical measure of bitterness intensity.
Yeemin P; Sumangka J; Sotthisawad K / 2022 / journal article / full text checked
Checked for this overview: The description defining it as partly digested contents of the small intestine and distinguishing intestinal locations. / Mean moisture, protein, and other proximate-composition values from cattle intestinal contents sampled on 3 occasions. / The paper introduction's statement that it is used in larb mixed with fresh blood, chili dips, and offal stews.
เสาวลักษณ์ เชื้อคำ (Saowaluck Chueakham) / / other / full text checked
Checked for this overview: The article's description of the part nearest the bile duct as good quality and mildly bitter. / The food article's depictions of use with sliced raw-meat salad, stir-fried noodles, and spicy dips and of restaurant encounters. / The article's statement recommending preliminary boiling for contents from farther along the intestine while noting that some cooks use them raw. / The food-culture article's treatment of intestinal contents and bile together as sources of mellow bitterness.
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Composition and content (2)
khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย) is defined as A term for partly digested contents (semi-liquid to liquid) in the part of a cow's small intestine between the openings of the bile and pancreatic ducts. The liquid part near the bile duct with little residue is called 「เพี้ยหัวดี」 (in translation: "phia hua di") and is considered good quality.contextual
Scope: Food culture of northeastern Thailand (Isan); a description in the introduction to a nutrition and food-hygiene paper.
Note: The paper's introduction cites a definition from earlier secondary sources (แสงอรุณ กนกพงศ์ชัย 2546; วิศิษฏ์ภูมิ สุขสมบัติ 2546); it is not the authors' own field survey.
The paper's introduction describes cow khi phia (ขี้เพี้ยวัว) as finely digested food, also called soft fecal matter, found in the small intestine of cattle and other ruminants, and states that the initial part of the cow's intestine has the openings of the Common bile duct and the Pancreatic duct.
Limitations: The definition itself is a secondhand citation from earlier secondary sources (แสงอรุณ กนกพงศ์ชัย 2546; วิศิษฏ์ภูมิ สุขสมบัติ 2546), not the authors' own ethnographic survey.
The article says 「เพี้ยที่ดีที่สุดคือเพี้ยที่อยู่ในลำไส้ส่วนต้นๆ...เรียกกันว่า เพี้ยหัวดี...มีรสขมแบบขมอ่ำหล่ำกลมกล่อม」 (in translation: "The best phia is that in the beginning part of the intestine... called phia hua di... it has a rounded, mellow bitter taste"). It describes the liquid part near the beginning of the intestine (near the bile duct), with little residue, as the good-quality 「เพี้ยหัวดี」 (in translation: "phia hua di") with mellow bitterness (ขมอ่ำหล่ำ).
Limitations: A cultural_media, low-priority source: a general food-culture explanation, not the author's own field survey. It provides no quantitative evidence.
Scope: Cattle intestinal-content samples from 2 slaughterhouses and 4 butcher shops in Sakon Nakhon Province (pooled mean from 3 sampling occasions: August [8] and December [12] 2021, and April [4] 2022).
Note: A direct result from measured proximate-composition analysis. Only cattle were studied; this has not been checked for buffalo or pig khi phia. The paper's results on bacterial contamination and food safety are not included here (safety claims fall outside the current inclusion rules).
Table 1 reports the following values (%, mean ± SD): crude protein 1.75±0.06 / crude carbohydrate 6.35±0.15 / crude fat 0.80±0.13 / moisture 87.02±0.10 / crude ash 1.81±0.22 / crude fiber 2.27±0.08.
Limitations: Season-specific values were not confirmed from this excerpt (only the overall mean values were checked). This does not apply to buffalo or pig ขี้เพี้ย.
khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย) is used in: It is described as used to add bitterness to dishes such as ลาบดิบ (raw larb, also called ก้อย, koi, in Isan; a preparation adding fresh blood to raw meat), แจ่วอีสาน (Isan jaew), อ่อมเนื้อ (om nuea), and แจ่วฮ้อน (jaew hon).contextual
Scope: People living in northeastern Thailand (Isan) generally; a statement in a paper's introduction, not the authors' own primary field survey.
Note: The description of the definition and scope of use is cited secondhand from earlier literature and gives no amounts, frequency, or regional differences.
「ประชาชนส่วนใหญ่ที่มีภูมิลำเนาอยู่ในภาคตะวันออกเฉียงเหนือ...นิยมนำขี้เพี้ยวัวมาใช้ประกอบอาหารอีสานเพื่อเพิ่มรสขมในอาหาร ไม่ว่าจะเป็นเมนูลาบดิบ หรือที่ชาวอีสานเรียกว่า ก้อย โดยการใส่เลือดสดในเนื้อดิบๆ...รวมทั้งการนำขี้เพี้ยวัวมาปรุงใส่ในอาหารอีสานหลากหลายเมนู เช่น แจ่วอีสาน อ่อมเนื้อ และแจ่วฮ้อน」 (in translation: "Most people living in the northeastern region... commonly use cow khi phia in Isan cooking to add bitter taste to food, whether in raw laab, or what Isan people call koi, by putting fresh blood into raw meat... They also add cow khi phia to various other Isan dishes, such as Isan jaew, om nuea, and jaew hon.").
Limitations: A secondhand citation from sources including ศูนย์การเรียนรู้อาหารไทย 2560; recipe details (amounts and frequency) are not given.
khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย) is prepared by: The part near the bile duct (เพี้ยหัวดี) is described as liquid, with little residue and a distinctive fragrance. By contrast, contents farther along the intestine are watery, have more residue, and smell stronger; they are described as requiring preliminary boiling before cooking (「ต้องนำไปต้มให้เรียบร้อยก่อนนำมาปรุงอาหาร」 (in translation: "must be boiled properly before being used in cooking")). The article also says some cooks use them raw without preliminary boiling.contextual
Scope: A description in a food-media article about Isan cuisine.
Note: A food-media account, not an assessment of hygiene or safety (safety claims fall outside the current inclusion rules). It depicts individual cooking practices without statistical evidence of frequency or regional differences.
The article says 「หากเป็นเพี้ยที่อยู่ในลำไส้ส่วนถัดมาอีกหน่อยจะเริ่มเป็นน้ำเหลวๆ มีกาก และมีกลิ่นเหม็นกว่าเพี้ยหัวดีจึงต้องนำไปต้มให้เรียบร้อยก่อนนำมาปรุงอาหาร」 (in translation: "If the phia comes from a little farther along the intestine, it starts to become watery, with residue and a stronger foul odor than phia hua di, so it must be boiled properly before cooking"). It also says 「บางคนก็ยอมเสี่ยง...นำไปปรุงอาหารแบบไม่ผ่านการต้มเลยทีเดียว」 (in translation: "some people nevertheless accept the risk... and use it in cooking without boiling it at all"), describing cooks who use it raw.
Limitations: A description of individual cooking practices, without statistical evidence of frequency or regional differences. The author's name (เสาวลักษณ์ เชื้อคำ) appears on the page, but no publication date was found.
khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย) is used in: It is described as added to ลาบ (larb), ก้อย (koi), ซอยจุ๊ (soi chu), and 「แจ่วขม」 (in translation: "jaew khom, a bitter chili dip"), a type of spicy dip.contextual
Scope: The food-media article depicts it as a routine scene in Isan restaurants to ask 「เอาขมบ่?（苦味入れますか?）」 (in translation: "Would you like bitterness added?").
Note: Amounts and proportions for individual dishes are not given.
The article names 「ลาบ ก้อย ซอยจุ๊」 (in translation: "laab, koi, and soi chu") and the spicy dip 「แจ่วขม」 (in translation: "jaew khom") as uses for bitterness, and depicts it as routine in Isan restaurants to ask 「เอาขมบ่?（苦味入れる?）」 (in translation: "Would you like bitterness added?").
Limitations: Amounts and proportions for individual dishes are not given.
khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย) is used in: It is listed as an ingredient of water-buffalo larb (ลาบควาย) under the name 「น้ำเพี้ย（น้ำเพ้ย）」 (in translation: "nam phia, also called nam phoei"). The described preparation combines finely chopped buffalo meat with น้ำเพี้ย boiled in water, blanched offal (liver, lungs, and stomach membrane), aromatic vegetables, and chili powder, then adjusts the seasoning to taste.contextual
Scope: Thai Lue people of Ban Na Yang Tai village, Nambak District, Luang Prabang Province, Laos. This is a case from Laos rather than Thailand, included as a record of a related Tai group connected to the Lanna–Lao cultural area.
Note: The original does not explicitly describe the dish as 「ขม（苦い）」 (in translation: "bitter"). This source supports only the fact that น้ำเพี้ย is added as an ingredient; it does not support a statement about the taste itself (in accordance with research protocol articles 7 and 8).
「มีส่วนประกอบ คือ 1) เนื้อควาย 2) เครื่องในจำพวกตับ ปอด ผ้าขี้ริ้ว รวมถึงหนังควายด้วย 3) ต้นหอม 4) หัวหอม 5) น้ำเพี้ย (น้ำเพ้ย) 6) กระเทียม และ 7) พริกป่น...น้ำเพี้ยนำไปต้มกับน้ำ แล้วนำเครื่องใน ตับ ปอด...มาต้มให้สุก...เติมน้ำต้มเพี้ย และพริกป่นปรุงรสและชิมให้ได้รสชาติตามที่ต้องการ」 (in translation: "The ingredients are 1) buffalo meat, 2) offal such as liver, lungs, and tripe, including buffalo hide, 3) spring onion, 4) onion, 5) nam phia (nam phoei), 6) garlic, and 7) ground chili... Nam phia is boiled with water, then offal, liver, and lungs... are boiled until cooked... The phia broth and ground chili are added to season it, and it is tasted to achieve the desired flavor.").
Limitations: This account does not use 「ขม」 (in translation: "bitter") as a taste descriptor, so bitterness itself is not asserted from this source. It concerns Laos, not Thailand.
Tom Khom includes khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย)contextual
Scope: The Isan dish 「ต้มขมไส้อ่อน」 (in translation: "bitter soup with pig small intestine"). One entry from a user-submitted recipe site (Wongnai)
States that the main ingredient is 「ไส้อ่อน 1 กิโลกรัม」 (in translation: "1 kilogram of small intestine"), which is parboiled for about one hour with lemongrass and galangal before adding 「น้ำเพี้ย ตามชอบ」 (in translation: "khi phia, to taste"). It also states 「เพิ่มน้ำเพี้ยตามใจชอบได้」 (in translation: "you may add more khi phia as you like"). The category tag is 「เมนูอาหารอีสาน」 (in translation: "Isan-cuisine menu").
Limitations: A user-submitted recipe (posted by gam.sali on 10 April 2019 (2019/4/10)). The poster's background is unknown, and it carries no academic backing. Beyond the quantities, it gives no description of cultural background. It is treated as a low-priority source.
nam dee (น้ำดี / ดี) is used as an alternative to khi phia (เพี้ย / ขี้เพี้ย / น้ำเพี้ย)contextual
Scope: A description of how to make larb khom (ลาบขม) in Phrae Province, using the side-by-side wording 「ใส่เพี้ย（ขี้ในไส้）หรือใส่น้ำดีของวัว หรือควาย」 (in translation: "add phia (intestinal contents) or add bile from cattle or buffalo").
In the same sentence, 「ใส่เพี้ย (ขี้ในไส้) หรือใส่น้ำดีของวัว หรือควาย」 (in translation: "add phia (intestinal contents) or add bile from cattle or buffalo") presents phia and bile as alternatives for bittering larb khom.
Limitations: This source does not establish criteria for choosing one over the other.
Source: ลาบขม หรือ ลาบแป้ (สำนักงานวัฒนธรรมจังหวัดแพร่ (Phrae Provincial Cultural Office); submitted under the handle "แพร่", 2020) · full text checked
Context: The article explains ดี (bile) and เพี้ย (intestinal contents) in succession and treats both as refined Isan bittering ingredients under the common expression 「ขมอ่ำหล่ำ」 (in translation: "rounded, mellow bitterness"). However, it does not use the dish name ลาบขม (larb khom) itself and refers only to the wider group of dishes ลาบ, ก้อย, ซอยจุ๊, and แจ่วขม.
Limitations: This is a different article and region (Isan) from the Phrae Province source (m-culture), so it does not directly show both ingredients listed for the same dish. The relation was therefore set to contextualizes to indicate supporting context.