Kecap Manis
Indonesian sweet soy sauce
What is this ingredient?
Kecap manis ('sweet sauce' in Indonesian) is a syrupy, caramel-like soy sauce. It is made by cooking soy sauce with palm sugar until a thick, glossy syrup forms.
## Fermentation & Maillard reaction products
Like regular soy sauce, kecap manis contains melanoidins that form during fermentation, heating and caramelization. Yamamoto et al. (2008) described these Maillard reaction products in various soy sauces, especially in relation to color, aroma and the chemical composition of fermented sauces.
## High sugar and sodium content
With ~65 g sugar and 4400 mg sodium per 100 ml, kecap manis is a concentrated seasoning to use in small amounts. A typical 1-2 tablespoon portion provides far less than 100 ml, but it is still distinctly sweet and salty.
## Palm sugar vs. regular sugar
Traditional kecap manis uses palm sugar (gula jawa), which brings a dark caramel taste and small amounts of minerals. It remains, however, a concentrated sugar source and is mainly used for flavor, gloss and balance in dishes.
How does it taste?
Syrupy sweet with deep soy umami, dark caramel notes and a soft salty base.
Pairs well with:
Pairs well with nasi gorengsataygarlicgingersesame oillime and sambal.
Did you know...?
- The English word 'ketchup' is probably related to Southeast Asian words such as 'kecap' for sauce.
- Kecap manis contains palm sugar, making it thicker, darker and sweeter than many regular soy sauces.
Nutritional Value & Energy
Per 100ml
Kecap Manis provides energy thanks to natural nutrients .
Per 100g
Minerals
Vitamins
More nutrients
B-Vitamins
Trace Minerals
What's in a serving?
1 serving
Kecap manis naturally contains iron (2.5 mg per 100 g).
% of daily reference intake (DRI)
EU-approved nutrition claims
This ingredient contains nutrients for which EFSA-authorized health claims exist (at nutrient level, not ingredient-specific).
Approved health claims (EU)
Iron EU 432/2012
Iron contributes to normal energy-yielding metabolism
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron contributes to the reduction of tiredness and fatigue
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron contributes to normal cognitive function
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron contributes to normal formation of red blood cells and haemoglobin
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron contributes to normal oxygen transport in the body
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron contributes to the normal function of the immune system
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
Iron EU 432/2012
Iron has a role in the process of cell division
Contains 2.5mg/100g (threshold: ≥2.1mg/100g)
What's being researched?
Melanoidins in kecap manis
Melanoidins formed during kecap manis production are studied as Maillard reaction products that contribute to color, aroma and the dark syrupy style of fermented soy sauces. Research specifically on kecap manis remains limited.
Supported by: [1] Ahouagi VB (2021)
Good Combinations (Synergy)
Combine kecap manis smartly to enhance the effect:
Kecap Manis 
Ginger Sweet soy umami + gingerols for Indonesian flavor base
Technical: Kecap manis (sweet soy sauce) contains isoflavones (genistein, daidzein) from fermented soybeans plus melanoidins (Maillard reaction antioxidants) from the caramelization process. Ginger's gingerols offer bioactive action and isoflavones + gingerols work synergistically in NF-kB modulation. The combination is the backbone of Indonesian cuisine.
What does this mean for you? Kecap manis + ginger is the base of nasi goreng, bami and satay. Two bioactive classes in one delicious sauce.
Kecap Manis 
Garlic Soy isoflavones + allicin for lipid profile support
Technical: Kecap manis' soy isoflavones (genistein) support vascular function via NO production and modulate the lipid profile. Garlic's allicin modulates ACE and triglycerides. Together they offer lipid profile support via three mechanisms: LDL modulation (isoflavones), ACE modulation (allicin) and vascular support (NO).
What does this mean for you? Marinate meat or tofu in kecap manis with minced garlic. This is not only the tastiest marinade but also rich in bioactive compounds. Marinate for at least 30 minutes for maximum flavor.
Recipes with Kecap Manis
Discover delicious recipes featuring kecap manis:
Bami Goreng with Shrimp and Bean Sprouts 30 min Indonesian stir-fry with crispy vegetables and sweet soy sauce 
630 kcal 
34g protein 2 synergies 
Indonesian Tempeh with Bitter Melon 45 min Stir-fry with kecap manis, galangal and lemongrass 320 kcal 18g protein 2 synergies 
Nasi Goreng with Chicken, Vegetables and Kecap 30 min Indonesian fried rice with chicken, egg and sweet soy sauce 555 kcal 39g protein 1 synergies 
In the Kitchen
Storage
Location:Pantry
Shelf life:1-2 jaar, koelen na openen
Preparation
Add to stir-fries, marinades and sauces. Start with 1 tablespoon per portion and build up for more sweetness, color and gloss.
Conversions
Substitutes
Smart preparation
1Add kecap manis only at the end of frying.
Why?
The sugars color quickly and can turn bitter under prolonged high heat.
2Use kecap manis as a marinade base for a nice caramel glaze.
3Thin kecap manis with a splash of lime or vinegar to balance the sweetness.
Caution / Warnings
Kecap Manis is very safe, but there are scientific considerations:
Soy allergy Severe
Made from soy; avoid this product if you have a confirmed soy allergy.
Diabetes Moderate
Very high sugar content (~65 g/100 ml); use small amounts and align it with your meal planning.
High blood pressure Moderate
Very high sodium content (4400 mg/100 ml); use sparingly when you are monitoring your salt intake.
Gluten intolerance Severe
Often contains wheat. Check the label for a gluten-free version.
Traditional use
Southeast Asian
Kecap manis in Indonesian culinary tradition
Kecap manis is an Indonesian sweet soy sauce prepared for generations, giving many Javanese dishes their dark gloss, sweet-salty balance and recognizable caramel taste.
Summary
Kecap manis is an Indonesian condiment with a deep sweet-salty taste, melanoidins from fermentation and a syrupy caramel glaze. Because of its high sugar and sodium content, it works best in small amounts.