Reference point
Split a length of fresh bamboo and smell the freshly split face.
Do this before you read on. An entry only works when you have just smelled the thing.
Green, wet, slightly sweet, with a grassy note and a little starch. Light and quick to evaporate. With pine wood, it is one of only two entries of the woody-resinous family in the top stage — and both are wood that is still living or freshly split, not yet dried or burned.
Fresh bamboo is closer to grass than to wood, because botanically it is a grass, not a tree. Its smell records that more precisely than its shape does.
Dry bamboo loses the green completely and becomes dry and dusty, close to straw. Only a freshly split face has the smell.
How to smell it
Split a length of fresh bamboo and smell the inside at once. Wait ten minutes and smell again — the green has almost all gone. It is one of the shortest-lived smells in the dictionary.
Why this one is hard
Because the time window is narrow and dry bamboo is far easier to come by than fresh.
Don’t confuse with
This entry
Freshly split bamboo
Woody & Resinous family
The same green leaf volatiles, so they are very alike in the first second. Bamboo has an extra damp, starchy note from its woody stem; grass is purely green and evaporates faster.
Scientific note
Freshly split bamboo releases six-carbon green leaf volatiles, the same group as freshly cut grass. Bamboo is a grass, even though its stems turn woody and grow dozens of metres tall. That it gives the same group of compounds as a weed is a direct consequence of that relationship — one of the places where chemistry confirms plant classification.
In Vietnamese life
The smell of freshly split bamboo goes with basket weaving and with building bamboo houses in the countryside. Cơm lam, rice cooked in bamboo tubes, borrows exactly this smell, which is why the tube must be fresh, never dry.