Tempeh
Also: Tempe, Fermented soybean cake
An Indonesian fermented food made by binding cooked soybeans into a firm, sliceable cake with the mold Rhizopus, traditionally sliced and shallow-fried (tempe goreng).
Identity criteria
- 1Whole cooked soybeans bound together by a living mycelium (Rhizopus oligosporus)
- 2Fermentation knits the beans into a solid, sliceable cake — not a paste or curd
- 3Visible white mycelium and intact beans distinguish it from tofu
- 4Nutty, savory, slightly mushroom-like flavor from fermentation
- 5Eaten cooked — most classically sliced thin and shallow-fried until crisp
Components
Cooked dehulled soybeansessentialThe substrate that is fermented
Frying oiloptionalFor the classic tempe goreng preparation
VinegaroptionalOften added to acidify beans and favor the mold
Rhizopus mold culture (ragi tempe)essentialThe fermentation agent that binds the cake
Salt and coriander/garlic marinadeoptionalCommon seasoning before frying
Technique
- Mold fermentation (koji-style Rhizopus inoculation)
- The mold is what transforms loose beans into a cohesive, digestible, flavorful cake
- Shallow-frying
- Crisps the exterior and deepens flavor in the iconic tempe goreng form
Form & serving
- Served
- Sliced and fried as a side or snack, or cubed into stews and sambals
- Temperature
- hot
- Portion
- Side or protein portion
- Pairs with
- rice · sambal · kecap manis · fresh vegetables
Character
Flavour
Texture
Firm, dense, slightly grainy with visible beans; crisp-edged when fried
Eaten
A daily protein staple in Indonesia, eaten with rice and sambal, and worldwide as a meat alternative.
When
year-round
Variations & related
Regional variations
- Tempe goreng · Indonesia
Sliced and shallow-fried, the most common form
- Tempe orek / kering tempe · Java
Crispy tempeh stir-fried in sweet-spicy sauce
- Tempe mendoan · Banyumas, Central Java
Thin tempeh in a soft battered fry
- Tempe bongkrek · Java
Coconut-based tempeh, historically risky for toxin
Related dishes
- sibling Oncom
Another Indonesian mold-fermented cake, often from peanut press cake
- sibling Tofu
Fellow soy protein, but coagulated rather than fermented
Substitutions
soybeans → other legumes (chickpea, black bean)admissible
Works as a tempeh substrate; alters flavor but keeps the form
fermented cake → plain unfermented mashed soybeansinadmissible
Without the mold fermentation it is simply mashed beans, not tempeh
tempeh → tofuinadmissible
Tofu is coagulated soy curd, an entirely different food with no fermentation or whole beans
Common mistakes
- Confusing tempeh with tofu — they are made by different processes
- Eating it raw or under-fermented
- Letting fermentation go too far so it over-sporulates and turns bitter (gray/black is normal mold, but ammonia smell means spoilage)
- Failing to acidify or maintain temperature so the wrong microbes dominate
Provenance
Originated in Java, Indonesia, centuries ago as a soybean fermentation technique; now a global plant-protein staple.
Claimed by: Indonesia
References
- 1.Indonesian culinary tradition
Confidence: high