Thai food guide

Som Tum (Thai Green Papaya Salad)

Som Tum (ส้มตำ), also written Som Tam, is a Thai green papaya salad made by lightly pounding crisp shreds of unripe papaya with a spicy lime dressing. A familiar Thai street food, it goes well with sticky rice. The recipe below is Som Tum Thai. Other styles use fermented fish for a deeper savoury flavour.

Som Tum at a glance

What to expect from Som Tum Thai
FeatureWhat to look for
Main ingredientFirm, unripe green papaya, cut into shreds
TasteLime, chilli, fish sauce and sugar, with a crisp bite
MethodCrush the aromatics first, bruise the beans and turn the papaya gently
Home recipeOne portion, adapted from MICHELIN Guide Thailand
Key allergens in this recipeFish, crustaceans and peanuts

Looking for the restaurant dish? See papaya salad in Doncaster. C2

What is Som Tum?

In English, Som Tum and Som Tam both refer to ส้มตำ, the name commonly used for green papaya salad. Som points to sourness and tam describes pounding. The technique also appears in Thai salads made with cucumber, fruit and other ingredients. T2 T3 T7

Green papaya salad is part of Lao and northeastern Thai food traditions and is eaten across Thailand. Som Tum Thai is one style. Its lime, sugar and fish sauce sit alongside dried prawns and roasted peanuts, while other versions use fermented fish or salted crab. T1 T2 T5 T7 E3

See our guide to Thai food and flavours for more dishes and the ingredients that distinguish them.

Green papaya salad served at Charm Thai Cafe in Doncaster
Som Tum served at Charm Thai Cafe in Doncaster. The home recipe below is a separate preparation.

Som Tum Thai home recipe

Adapted from the one-portion recipe in MICHELIN Guide Thailand. The quantities and pounding order follow that recipe. Cherry tomatoes and peeled garlic are practical choices. The optional lighter chilli level and the suggestion to add the fish sauce gradually are adjustments for home cooks. T1

Use a deep mortar, a wooden pestle, a spoon, a chopping board and a knife or a julienne peeler. A tablespoon is 15 ml. Wash and drain the produce before preparing it. E1 U1

Ingredients for one portion

  • 80 g shredded unripe green papaya and 10 g carrot, cut into fine strips
  • 4 fresh red Jinda chillies or bird’s-eye chillies, or fewer for less heat
  • 2 peeled Thai garlic cloves
  • 4 to 5 yardlong beans, cut into short pieces, and 2 cherry tomatoes, halved
  • 4 lime wedges, squeezed for their juice
  • Up to 2 tbsp fish sauce (30 ml), added to taste
  • 1 tbsp palm sugar and ½ tbsp brown sugar
  • 15 g dried prawns and 20 g roasted peanuts, with some peanuts reserved for serving

Method

  1. Prepare the vegetables. Peel and deseed the papaya and cut it into firm shreds. Set it aside with the carrot. Cut the beans and halve the tomatoes.
  2. Crush the aromatics. Roughly pound the chillies and garlic. Add most of the roasted peanuts and tap until they crack.
  3. Bruise and dress. Add the beans and tomatoes and press lightly. Mix in the palm sugar, brown sugar, lime juice and part of the fish sauce. Work the sugar into the liquid and taste before adding the rest of the fish sauce.
  4. Turn the papaya through. Add the papaya, then the carrot. Turn the shreds with a spoon while tapping gently with the pestle. Stop when the dressing coats the shreds and they still hold their shape.
  5. Finish on the plate. Add the dried prawns and the reserved roasted peanuts. Serve once assembled.

Allergens in this recipe. Fish sauce contains fish, dried prawns are crustaceans and the recipe contains peanuts. Check the labels of the products you use. T1 U3

How to keep green papaya salad crunchy

Choose firm, pale-fleshed unripe papaya and cut it into shreds with enough thickness to keep their bite. A julienne peeler is convenient. If the tool produces very fine shreds, cut the papaya into sturdier strips on a board. E1 E2

Three cues while you mix
Look forWhat to do
Beans just splitTap them early so they bruise before the papaya goes in.
Tomatoes still in piecesPress enough to release a little juice, then move on.
Papaya shreds still intactTurn and tap gently at the end, then stop when the dressing is evenly distributed.

Can you make Som Tum ahead?

Prepare the shreds and the dressing separately. Cover and chill them, then bruise and mix the salad near serving. If you are taking it to share, carry the dressing separately and finish the salad at the table. Keep the finishing peanuts separate until plating. T1 E2 U2

Making it without a mortar

Crush the garlic and chilli with clean equipment, bruise the beans lightly and mix the dressing in a bowl. Toss it through the papaya and tomatoes just before serving. The bowl method is a practical adaptation with a different texture. T6 U1

Ingredients, substitutions and seasoning

What each ingredient contributes
IngredientWhat it doesWhat to check
Green papayaGives the salad its firm shredsBuy unripe papaya. Green mango makes a sharper-tasting variation.
Yardlong beansGive a fresh, firm biteOrdinary green beans are an option in a home adaptation.
TomatoesRelease juice into the dressingBruise them lightly. Taste the dressing before adding more liquid.
Lime, fish sauce and sugarsBring sour, salty and sweet flavours togetherTaste on a shred of papaya and adjust gradually.
Fresh chillies and garlicBring heat and aromaStart with less chilli if you prefer a gentler salad.
Dried prawns and peanutsAdd savouriness and contrasting texturesCheck crustacean and peanut ingredients and handling.

The balance varies by recipe. KRUA.CO makes a separate dressing with tamarind and adds lime as the salad is mixed. The home recipe above uses the lime and two-sugar combination from its named source. T1 T4 E2

Som Tum Thai, Pla Ra, Pu and other styles

How the styles differ
StyleWhat typically distinguishes it
Som Tum ThaiA lime, fish sauce and sugar dressing, often with dried prawns and roasted peanuts.
Som Tum Pla RaFermented fish seasoning adds a deeper savoury flavour. Other ingredients vary.
Som Tum PuSalted crab is a feature in this style. Some preparations combine crab and fermented fish.
Tum TangCucumber forms the base.
Pounded fruit or corn saladsMixed fruit or sweetcorn gives a different balance of sweetness and texture.

These names help you choose a style. Ask about the actual ingredients if you have an allergy, especially where fish sauce, fermented fish, crab, dried prawns or peanuts may be used. T1 T2 T7 E3 E4 U3

What to serve with Som Tum

Sticky rice and grilled chicken are a familiar pairing. Fresh vegetables can sit alongside the salad. For a different vegetable side, see our Yum Pak guide for a tossed cucumber and carrot version. T5 T6 C3

60 Som Tum questions

Open a question below, or use the buttons to show or close all answers.

Name, identity and origins

1. What is Som Tum?

Som Tum commonly means green papaya salad in English. Cooks bruise shreds of unripe papaya with a seasoned dressing, often using a mortar and pestle. T1 T2

2. Is Som Tam the same as Som Tum?

Yes. Both spellings represent ส้มตำ. Use either when looking for a recipe, then check the rest of the name for the style. T3 E1

3. What does the Thai name mean?

Som points to sourness and tam refers to pounding. Thai cooks use tam in the names of other pounded salads too. T2 T7

4. How do you pronounce Som Tum?

An approximate English guide is som dtam, with an unaspirated t sound at the start of the second syllable. The Thai spelling is ส้มตำ. T3

5. Is Som Tum Thai or Lao?

Papaya salads belong to Lao and northeastern Thai food traditions and are eaten across Thailand. The sources describe regional connections and different versions. A single place of invention is uncertain. T2 T5 E5

6. Does every Som Tum contain papaya?

Green papaya is the base of the familiar version. Cucumber, corn and mixed fruit also appear in Thai pounded salads, often with their own names. T2 T1 E4

Flavour, heat and texture

7. What does Som Tum Thai taste like?

Expect lime sharpness, fish-sauce saltiness, sweetness and chilli heat, with crisp papaya under the dressing. T1 E1

8. Is Som Tum always very spicy?

The heat depends on the cook and the chillies. Start with less chilli if you are making it for people who prefer a gentler salad. T1 E2

9. Does green papaya taste like ripe papaya?

Unripe papaya is firm and mild. Ripe orange papaya is softer and sweeter, so it gives a different texture and flavour. E1

10. Why do the papaya strips need to stay crisp?

Their bite contrasts with the juicy tomatoes and dressing. Add the strips late and bruise them gently so they keep their structure. T1 E1

11. Can the same number of chillies give different heat?

Yes. Chillies vary, so use the recipe amount as a guide and taste the dressing before adding more. T1 E2

12. Is Som Tum Thai usually sweeter than Som Tum Pla Ra?

Som Tum Thai often has a noticeable sweetness, while pla ra gives the other style a stronger fermented savoury flavour. The balance still depends on the recipe. T2 E3

The ingredients and dressing

13. What do yardlong beans add?

They add a firm bite. A light tap splits or bruises the pieces so the dressing reaches more of their surface. T1 T4

14. Why are the tomatoes bruised?

A gentle press releases juice into the dressing while leaving recognisable pieces of tomato. T1 T4 E1

15. What is palm sugar for?

It rounds out the sharp lime and salty fish sauce. The featured recipe uses palm sugar and brown sugar together. T1

16. What does fish sauce contribute?

It supplies salt and savoury flavour. Taste as you go, since brands and the amount of tomato juice can affect the balance. T1 E1

17. Why add dried prawns at the end?

In the featured recipe they are a finishing ingredient with a concentrated savoury taste and chewy texture. Other methods pound them into the dressing. T1 E1

18. Why split the peanuts between the mortar and the plate?

The crushed portion flavours the dressing. The portion added at the end keeps more of its crunch. T1

Shopping and preparing the papaya

19. How do I choose green papaya?

Look for an unripe fruit with firm flesh. A green skin by itself is a poor guide if the fruit has already started ripening inside. E1 E2

20. Which parts of the papaya do I remove?

Peel the skin and remove the seeds and soft material from the centre. Use the firm flesh for the shreds. E1 E2

21. What can replace a yardlong bean?

Ordinary green beans are one recipe adaptation. They have a different bite, so cut them into small pieces and bruise them lightly. E2

22. Can I use green mango instead of papaya?

Yes, as a variation. Unripe mango has a sharper flavour, so taste it with the dressing before adding extra lime. T2 E2

23. What if palm sugar is hard to find?

Use a suitable brown sugar in an adaptation and taste as you go. The flavour and sweetness can differ from palm sugar. T1 E2

24. Can I shred papaya in advance?

Yes. Keep the prepared papaya covered and chilled, and hold the dressing separately until assembly. E2 U2

Mortar, tools and technique

25. What kind of mortar suits Som Tum?

A deep mortar gives the salad room to move. A wooden pestle is useful for controlled bruising, and a spoon helps turn the strands. E1

26. Do I need a mortar and pestle?

You can crush the aromatics with clean equipment, mix the dressing and toss the salad in a bowl. The texture differs from a lightly pounded salad. T6

27. Can I use a julienne peeler?

Yes. Use a tool that makes substantial strips. Very fine shreds lose their bite more easily. E1

28. When do the garlic and chillies go in?

They go in first in the featured recipe. Crush them roughly before adding the peanuts and other ingredients. T1

29. How hard should I pound the papaya?

Use light taps and turn the strands with a spoon. Stop when the dressing is distributed and the shreds still hold their shape. T1 E1

30. What should I do if my mortar is small?

Bruise the aromatics, beans and tomatoes in the mortar, then finish the papaya in a larger bowl. That gives you room to turn the strands. E1 T6

Regional and ingredient variations

31. What is Som Tum Thai?

It is a Thai-style preparation commonly made with green papaya, lime, chilli, fish sauce, sugar, peanuts and dried prawns. Recipes vary. T1 T2

32. What is Som Tum Pla Ra?

It is a version seasoned with pla ra, a fermented fish seasoning used in Isan and Lao-style cooking. Check the recipe for other additions. T2 E3

33. What is Som Tum Pu?

Pu means crab. A common version adds salted crab, and some recipes also use pla ra. The name alone does not give a full ingredient list. T7 E3

34. What is Tum Tang?

Tum Tang is a pounded cucumber salad. The cucumber gives it a juicier bite than green papaya, and its seasoning can vary. T2 E5

35. What is Som Tum Sua?

It is a variation that adds rice noodles to the pounded salad. Check the individual dressing and toppings. E3

36. Can I make a fruit or corn variation?

Yes. Thai recipes also use mixed fruit or sweetcorn. Taste and adjust the dressing to suit the sweetness of the base. T1 T2 E4

Allergens and dietary requests

37. What allergens are in the featured recipe?

It contains fish in the fish sauce, crustaceans in the dried prawns and peanuts. Check the actual packaged ingredients for additional declarations. T1 U3

38. Are fish sauce and dried prawns the same allergen?

They belong to different allergen categories. Fish sauce contains fish, while prawns are crustaceans. A dish can contain both. U3

39. Can I make a vegan Som Tum?

For a home adaptation, choose a plant-based seasoning and leave out dried prawns and any crab. Check every ingredient, including the sauce label. T1 U3

40. Does a vegan version have to be peanut-free?

Peanuts are a plant ingredient and can still be in vegan Som Tum. A vegan menu label does not describe peanut content or cross-contact. C1 U3

41. Is Som Tum gluten-free?

Ingredients differ across recipes and products. Check the labels and, when ordering, ask about the dressing, toppings and handling. C2 U3

42. Can I rely on removing the peanut garnish?

In the featured recipe some peanuts are pounded into the dressing. For an allergy, discuss all ingredients and shared equipment before ordering. T1 C2 U3

Serving and choosing a salad

43. What goes with Som Tum?

Sticky rice and grilled chicken are a familiar pairing. Fresh vegetables can be served alongside the salad. T5 T6

44. Can I serve it as a starter?

Yes. Serve it as a small salad course or as one dish in a shared meal. T1 T6

45. When should I add the final peanuts?

Add the finishing portion when you plate the salad for the clearest contrast between the crisp peanuts and dressed papaya. T1

46. Should I serve it with the liquid in the mortar?

Spoon over some dressing for flavour and taste before adding the rest. Tomato juice and the amount of dressing vary from batch to batch. T1 E1

47. How does Som Tum differ from Yum Pak?

The Som Tum Thai recipe here uses lightly pounded papaya and aromatics. Our Yum Pak home guide uses sliced vegetables tossed in a separately mixed dressing. T1 C3

48. Is Som Tum the same as a mixed fruit salad?

The familiar green papaya version has a mild, crisp base. The Thai pounded fruit version starts with a mix of fruits and has its own balance. E4 T2

Fixing the result

49. Why did the papaya turn soft?

Very thin shreds and heavy pounding can take away their bite. Use sturdier strips and turn them gently at the end. T1 E1

50. Why is there a pool of dressing?

Tomato juices and the dressing can collect at the bottom. Taste as you mix and spoon over only what the portion needs. T1 E1

51. How can I make a salty dressing less strong?

Taste it on a shred of papaya first. If it is still too strong, use less of it and make any further adjustment in small amounts. T1 E1

52. What if the salad tastes too sweet?

Try a little more lime, tasting on a piece of papaya after each addition. The aim is to restore the balance without drowning the salad. T1 E1

53. How can I stop the sugar feeling gritty?

Break up the sugar before mixing and work it into the wet ingredients before the papaya goes in. T1 T4

54. How do I keep the same texture when making several portions?

Work in small batches so the mortar has room for the spoon to turn the shreds. Dress each batch close to serving. T1 E1 E2

Make-ahead, storage and restaurant orders

55. Can I make Som Tum ahead for a meal?

Prepare the components and keep the papaya and dressing chilled separately. Finish the salad close to serving. E2 U2

56. How should I handle the vegetables before serving?

Wash produce under running water, use clean hands and equipment, and keep ready-to-eat ingredients away from raw meat and seafood. U1

57. Should I heat the leftovers to restore the crunch?

Som Tum is served as a fresh salad. Heat changes the texture. For a crisp result, prepare only what you need and keep the remaining components chilled. E2 U2

58. Can I use a published calorie count for any Som Tum?

The amount of sugar, peanuts and dressing, as well as portion size and accompaniments, varies. A nutrition estimate needs the quantities for the specific version.

59. How spicy is the Charm Thai Cafe version?

The menu marks it very hot. Tell the team how much chilli you prefer when ordering so they can discuss your preparation request. C1 C2

60. How do I order Som Tum at Charm Thai Cafe?

Look for Som Tum in the Salads menu or use the Doncaster papaya salad page. Tell the team about allergies and dietary requirements before ordering. C1 C2 U3

Thai words for the salad

Thai glossary with approximate pronunciation
ThaiApproximate pronunciationMeaning
ส้มตำsom dtamPounded salad, commonly green papaya salad in English
ส้มตำไทยsom dtam thaiThai-style Som Tum
มะละกอดิบma la kaw dipUnripe papaya
ปลาร้าpla raFermented fish seasoning
ปูpuCrab
ถั่วฝักยาวthua fak yaoYardlong beans
น้ำปลาnam plaFish sauce
กุ้งแห้งgung haengDried prawns
ถั่วลิสงthua li songPeanuts
ข้าวเหนียวkhao niaoSticky rice
ไก่ย่างgai yangGrilled chicken

Som Tum at Charm Thai Cafe

Our Salads menu lists Som Tum with shredded green papaya, fresh chilli, lime, tomato, green bean and peanuts. It is marked very hot. Tell us your preferred heat when ordering and ask about the current dressing and preparation if you have an allergy. We prepare food in a shared kitchen. C1 C2 U3

For the restaurant version and preparation requests, see our Doncaster papaya salad page.

Sources and further reading

  1. T1. MICHELIN Guide Thailand, ส้มตำไทย recipe. One-portion recipe, quantities, mortar sequence, light pounding and seasoning.
  2. T2. MICHELIN Guide Thailand, ถอดรหัสความอร่อย ส้มตำ. Regional variation, salad bases and professional preparation.
  3. T3. ALTV Thai PBS, Thai street-food names. Thai spelling and street-food context.
  4. T4. KRUA.CO, ส้มตำไทย. A different dressing, gentle pounding and preparation order.
  5. T5. Thailand Department of Agricultural Extension, Som Tum. Green papaya, balanced seasoning and accompaniments.
  6. T6. ThaiSelect cookbook, hosted by the Royal Thai Embassy in Vienna. Bowl adaptation and sticky rice with grilled chicken.
  7. T7. Food Network Solution, ส้มตำปู. Salted crab as a style and the meaning of tam.
  8. E1. Serious Eats, Som Tam Thai. Why cut thickness and gentle bruising matter.
  9. E2. RecipeTin Eats, Green Papaya Salad. Make-ahead preparation, ingredients and practical adaptations.
  10. E3. Hot Thai Kitchen, Som Tum Pla Ra. Fermented fish seasoning and related styles. Indexed recipe excerpts reviewed.
  11. E4. Tourism Authority of Thailand UK, Som tam pon-la-mai. Fruit-based variation.
  12. E5. MICHELIN Guide, Decoding Som Tam. Thai and Isan context, cucumber and other bases.
  13. U1. Food Standards Agency, why cleaning is important. Washing produce, clean hands and equipment.
  14. U2. Food Standards Agency, chilling food safely. Cold storage and handling.
  15. U3. Food Standards Agency, food allergy and intolerance advice. Fish, crustaceans and peanuts, checking ingredients and communicating allergies.
  16. C1. Charm Thai Cafe, Salads menu. Menu name, listed ingredients and heat rating.
  17. C2. Charm Thai Cafe, Papaya Salad in Doncaster. Ordering, heat preferences and shared kitchen.
  18. C3. Charm Thai Cafe, Yum Pak. The separately dressed vegetable side salad and home method.