The first clue is often a sensation you cannot immediately name. A grilled bite feels lively rather than merely hot. A sour noodle broth has a floral edge that lime alone cannot reproduce. Before calling either effect “spice,” separate taste, smell and the physical sensations of eating. They overlap in a mouthful, but they are not the same signal.
Regional names matter just as much as chemistry. A translation such as “pepper,” “ginger” or “bean paste” can hide important differences in species, processing and customary use. The notes below are starting points for asking better questions, not a shopping list that makes these traditions interchangeable.
Sanshō: fragrance with a prickle
Japanese sanshō comes from Zanthoxylum piperitum, a plant in the citrus family. The aromatic fruit husk is used as a seasoning; young leaves, known as kinome, have their own culinary role. Ground sanshō is often associated with grilled eel, where its bright aroma and tingling sensation provide a striking contrast to a rich, sweet-savoury glaze.
The prickle is not simply a smaller dose of chilli heat. Sanshool compounds contribute to a tingling or buzzing sensation through mechanisms distinct from capsaicin. Meanwhile, volatile aromatic compounds contribute the citrus-like impression. You can therefore notice a fragrant smell before the characteristic mouth sensation appears. Freshness, storage and the particular product change the experience considerably.
Sanshō and Sichuan pepper are related, but a family resemblance is not equivalence. Different Zanthoxylum species and regional preparations produce different aromatic profiles. When following a specific recipe, preserve its ingredient name before considering a substitution. A replacement may make good food while still making a different dish.
Torch ginger: a flower bud with a job
In Penang-style asam laksa, bunga kantan—the flower bud of torch ginger, Etlingera elatior—can add an unmistakable floral, fresh aromatic note. The broth’s sourness is commonly associated with tamarind, while fish contributes savoury depth. Torch ginger works alongside those elements rather than supplying their functions.
Despite its English name, the bud is not a direct substitute for ordinary ginger rhizome. Its texture, plant part and aroma differ. Slicing it finely changes both how easily it is eaten and how its fragrance is released. Recipes and garnish practices vary, so ask how a particular cook uses it rather than treating one bowl as the regional rule.
If you cannot obtain it, name the omission honestly. Extra lime or ginger may create a pleasing bowl, but it does not reproduce the missing floral character. “Adapted without torch ginger” is a more useful description than claiming a perfect replacement.
Pandan: aroma is not sweetness
Pandan leaves, commonly from Pandanus amaryllifolius, can give cooked foods an aroma often described as grassy, nutty or reminiscent of fragrant rice. The compound 2-acetyl-1-pyrroline is one contributor to this aromatic family. That connection helps explain a sensory resemblance; it does not mean pandan and aromatic rice are identical.
The leaf itself does not make a dish sweet in the way added sugar does. In a dessert, sweetness may come from sugar, palm sugar or another ingredient while pandan supplies aroma. Sweet-dish associations can influence expectation, which is another reason to distinguish a familiar smell from an actual taste.
Leaves may be knotted into cooking liquid and removed, or processed for extracts in suitable recipes. Commercial pandan flavourings vary in composition and colour. Read the ingredient label rather than assuming a vivid green bottle contains only leaf extract.
Fermented soybeans: process changes the pantry
Japanese miso, Korean doenjang and Indonesian tempeh all involve soybeans, yet they have different structures, microbial processes and kitchen roles. Calling all three “fermented soy” is useful at a broad level but inadequate when choosing what to cook. Tempeh is a bound cake, while miso and doenjang are seasonings with their own production traditions.
During fermentation, microbial enzymes can break large food molecules into smaller ones. Protein breakdown can release amino acids, including glutamate, which contributes to umami. The final flavour still depends on raw materials, salt, organisms, temperature and time. Fermentation is not one universal flavour generator.
Nor is fermentation a blanket safety or health claim. Soy remains a relevant allergen, and some products contain wheat or other ingredients. Use manufacturer storage directions and reliable preparation guidance. For adventurous eating, curiosity works best when it includes the label, the local name and the person preparing your food.
Reading and identification notes
- Sanshō: botanical identity and culinary uses — an orientation reference, not proof of every sensory claim.
- Torch ginger: plant identity and regional names.
- 2-Acetyl-1-pyrroline: an introduction to the aroma compound.
- WHO food-safety overview — useful context for separating culinary interest from safety assurances.