Thai script ข้าวมันไก่. The only published Thai standard for this dish is TCPS 1372/2556, and it covers the dipping sauce: mature fresh ginger mixed with fermented soybean paste, optionally with chilli, garlic and coriander root, seasoned with sugar, salt, sweet dark soy sauce, lime juice and vinegar. All synthetic colours are banned. The scope clause covers only sauce that is kept and transported chilled. Premises must hold a Ministry of Public Health licence. Nothing defines the rice or the chicken. The sauce contains soy twice over.
Thailand defined the sauce and nothing else
The Thai Industrial Standards Institute publishes the Thai Community Product Standard series through the Ministry of Industry. Searching the register for ข้าวมันไก่ returns exactly one document: TCPS 1372/2556, น้ำจิ้มข้าวมันไก่, whose English title in the standard itself is Khaoman Kai Dipping Sauce. It was issued as TISI notification No. 1878, decided at sub-committee meeting 26-2/2556 on 18 July 2556 and announced on 5 September 2556, signed by Secretary-General Urit Srinongkote, cancelling the 2550 version.
That is the whole official record for this dish. No standard defines the rice, the fat it is cooked in, the stock, the pandan, the poached chicken, or the clear soup beside it. It is worth being blunt about why: the scheme certifies packaged goods a community producer can bottle, and a plate of chicken and rice is not a packaged good. Anything you have read about correct ratios or poaching temperatures comes from a cook, and a cook is a perfectly good source — just not a specification.
What the standard says is in the sauce
| Ingredient | Thai | How the standard treats it |
|---|---|---|
| Mature fresh ginger | ขิงสดที่แก่ | Base - the standard specifies mature, not young, and chopped or coarsely ground |
| Fermented soybean paste | เต้าเจี้ยว | Base - mixed with the ginger; this is what makes the sauce a soy product |
| Chilli | พริก | Optional addition - ground or chopped fine |
| Garlic | กระเทียม | Optional addition - ground or chopped fine |
| Coriander root | รากผักชี | Optional addition - ground or chopped fine |
| Sugar | น้ำตาล | Seasoning group |
| Salt | เกลือ | Seasoning group |
| Sweet dark soy sauce | ซีอิ๊วดำหวาน | Seasoning group - a second soy ingredient |
| Lime juice | น้ำมะนาว | Seasoning group |
| Vinegar | น้ำส้มสายชู | Seasoning group |
The base is ginger and fermented soybean paste. Not chilli, which the standard treats as optional; not garlic, likewise. And the standard specifies mature ginger — ขิงสดที่แก่ — rather than young ginger, which is a note about heat and fibre that a government document had no obligation to make. The last step in the definition is that the mixture is heated until it reaches the thickness the maker wants, and then kept cold.
If you avoid soy. Fermented soybean paste is one of the two base ingredients, and sweet dark soy sauce appears again in the seasoning list. Under the Thai standard there is no soy-free version of this sauce. A shop is not bound by the standard, but the bean paste is the point of the sauce, so assume soy.
The chilled chain, and the ban on colour
The scope clause is where this standard is unusual. Clause 1.1 covers only sauce that has been heat treated, packed in a hermetically sealed container, stored chilled, and packed and transported in containers that hold their temperature. A jar sitting on a warm shelf is outside the standard, not merely a poor example of it.
| What the standard controls | The requirement |
|---|---|
| Synthetic colours | All kinds prohibited outright - clause 3.5.1 |
| Preservatives | Permitted only in the types and amounts Thai law separately allows |
| Storage | Chilled. The scope clause covers only sauce kept and transported temperature-controlled |
| Salmonella | Not detected in a 25 g sample |
| Staphylococcus aureus | Fewer than 10 colonies per gram |
| Bacillus cereus | No more than 1,000 colonies per gram |
| Clostridium perfringens | No more than 1,000 colonies per gram |
| E. coli (MPN) | Fewer than 3 per gram |
| Premises | Must hold a Ministry of Public Health licence - clause 4.1 |
| Label | Must carry the Ministry of Public Health food serial number - clause 6.1(7) |
Two of those are stricter than the series average. All synthetic colours are prohibited with no permitted quantity, and the premises must hold a Ministry of Public Health licence with the ministry’s food serial number printed on the label. The labelling clause also requires the significant ingredients as approximate percentages by weight in descending order, and storage advice such as refrigerate after opening.
What we could not confirm, and did not invent
- The rice, the chicken and the broth. No Thai standard defines any of them. Nothing official says the rice is cooked in chicken fat, or with pandan, garlic or ginger, and nothing official describes how the bird is poached.
- Proportions. The sauce definition gives no quantity for anything, so there is no official ratio of ginger to bean paste and no official heat level.
- The Hainanese attribution. Repeated almost everywhere and quite possibly correct. It appears in no standard, we could not confirm it against a primary source, and it is not stated here as fact.
- Where the dish belongs. Two certificates, in Phitsanulok and Nan, cannot locate a dish sold on every street in the country. We report them as certificates and draw no map from them.
- Any heritage listing. The Department of Cultural Promotion’s intangible cultural heritage portal at ich.culture.go.th does not resolve, so we make no claim in either direction.
- Prices, and where to eat it. No official source for either, and we do not name restaurants we cannot verify.
Frequently asked questions
Thai Community Product Standard TCPS 1372/2556 defines it, and the base is not what most visitors assume. The definition clause describes mature fresh ginger, chopped or coarsely ground, mixed with เต้าเจี้ยว - fermented soybean paste - with other ingredients such as chilli, garlic and coriander root optionally ground or chopped fine and added, seasoned with seasonings such as sugar, salt, sweet dark soy sauce, lime juice and vinegar, then heated until it reaches the thickness wanted and kept chilled. Two things follow from that. The sauce is a soy product twice over, through the fermented bean paste and again through the sweet dark soy, which matters if you avoid soy. And ginger is the base rather than a garnish - the standard bothers to specify mature ginger rather than young, which is a note about pungency written into a government document.
No, and that is the honest shape of this page. Searching the register for ข้าวมันไก่ on 8 September 2026 returns exactly one published standard, and it is the sauce. Nothing in the Thai Community Product Standard series defines the rice, the fat it is cooked in, the stock, the pandan, the chicken, how the chicken is poached, or the broth served beside it. That is not an oversight - the scheme standardises packaged goods that a community producer can bottle and sell, and a plate of rice and chicken is not one. So anything you read about the correct ratio of chicken fat to rice, or the right poaching temperature, comes from a cook rather than from a document, and we are not going to dress a technique up as a specification.
Yes, by definition. Fermented soybean paste is one of the two base ingredients in TCPS 1372/2556, not an optional extra, and sweet dark soy sauce appears again in the seasoning list. There is no version of this sauce under the Thai standard that is soy-free. The standard's labelling clause requires the significant ingredients to be shown as approximate percentages by weight in descending order, so a jar that meets it will tell you how much. A restaurant is not bound by the standard, but the sauce is the defining element of the dish and the bean paste is the defining element of the sauce, so assume soy and ask if it matters.
Because the scope clause says so, and it is unusually specific about it. TCPS 1372/2556 clause 1.1 covers only khao man gai dipping sauce that has been heat treated, packed in a hermetically sealed container, stored by chilling, and packed and transported in containers that maintain temperature. A jar of this sauce sold at room temperature is outside the standard entirely. The microbiological requirements explain the caution: Salmonella must not be detected in a 25 gram sample, Staphylococcus aureus must be under 10 colonies per gram, and Bacillus cereus and Clostridium perfringens are each capped at 1,000 per gram. The label must also carry storage advice such as refrigerate after opening. If you buy a bottled version to take home, that is the instruction worth following.
Not if it meets the standard. Clause 3.5.1 of TCPS 1372/2556 prohibits all synthetic colours, with no permitted quantity - a flat ban rather than a limit. Preservatives are allowed only in the types and amounts Thai law separately permits. The standard also requires the premises to hold a Ministry of Public Health licence and the label to carry the ministry's food serial number, which is a stricter administrative footing than many community product standards demand. None of that applies to a sauce made fresh in a shop each morning, which is not a packaged product and is not in the scheme.
The register does not answer that question, and it would be dishonest to pretend otherwise. On 8 September 2026 it returned two current certificate holders against TCPS 1372/2556: an individual producer in Mueang Phitsanulok district, Phitsanulok, and a limited partnership in Phu Phiang district, Nan. Neither is in Bangkok, where the dish is most associated with a particular stretch of Pratunam. Two certificates cannot locate a dish that is sold on almost every street in the country; they locate two people who chose to certify a bottled sauce. The dish is very widely attributed to Hainanese Chinese migration into Thailand, and that attribution may well be correct, but no standard mentions it and we could not confirm it against a primary source, so it is not stated here as fact.
Related guides
- Khao kha moo — the other one-plate rice dish, and the five-spice powder standard behind it.
- Khao soi — the northern noodle bowl, and the curry powder written into its standard.
- Thai street food — how ordering actually works, and what a single plate costs to buy.
- Food delivery apps — how the same plate reaches a condo in fifteen minutes.
- Street food vendor permits — the licensing behind the stall, if you have ever wondered.
- Dining in Bangkok — the city this dish is most associated with.
- Cost of living in Bangkok — what a month actually costs, lunch included.
- Living in Nimman — the Chiang Mai district where the same plate costs noticeably less.
A sixty-baht lunch is one of the real reasons people stay
If eating well for very little is part of the appeal, the next question is what the rest of the month costs.
Sources & References
- Thai Industrial Standards Institute, Ministry of Industry - Thai Community Product Standard TCPS 1372/2556, Khaoman Kai Dipping Sauce, ICS 67.220.10, ISBN 978-616-346-023-3. Its scope clause 1.1 covers only sauce that has been heat treated, packed in a hermetically sealed container, stored chilled and transported in temperature-controlled containers. Its definition clause 2.1 describes mature fresh ginger, chopped or coarsely ground, mixed with fermented soybean paste, with other ingredients such as chilli, garlic and coriander root optionally ground or chopped fine and added, seasoned with seasonings such as sugar, salt, sweet dark soy sauce, lime juice and vinegar, heated until it reaches the thickness wanted, and kept chilled. Clause 3.5.1 prohibits all synthetic colours. Clause 4.1 requires the premises to be licensed by the Ministry of Public Health and clause 6.1(7) requires the food serial number on the label. Issued as TISI notification No. 1878 (B.E. 2556), decided at sub-committee meeting 26-2/2556 on 18 July 2556 and announced on 5 September 2556, signed by Secretary-General Urit Srinongkote, cancelling TCPS 1372/2550
- Thai Industrial Standards Institute - the public register of published community product standards, queried directly on 8 September 2026. Searching khao man gai returns exactly one standard, TCPS 1372/2556 for the dipping sauce. No published community product standard covers the rice, the chicken or the broth of this dish
- Thai Industrial Standards Institute - the public register of certified community producers, queried directly on 8 September 2026. Against TCPS 1372/2556 it returns two current certificate holders: an individual producer in Mueang Phitsanulok district, Phitsanulok, and a limited partnership in Phu Phiang district, Nan. Neither is in Bangkok
Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.
