Why Does My Tea Have No Smell? Common Causes and How to Fix It
Why your tea has no smell (aroma)
You brew your favourite tea and lean in for that first breath, and there's almost nothing there. When a tea loses its smell, it's usually for one of a handful of reasons, and most of them are easy to fix.
Where tea aroma comes from
Tea's smell comes from hundreds of volatile organic compounds (VOCs). A few groups do most of the work. Polyphenols give green teas their fresh, crisp scent, and theaflavins create the malty aroma of black teas. Amino acids, L-theanine in particular, add sweet and umami notes. Essential oils carry the floral and fruity notes, and they're especially strong in high-altitude teas like those from Ilam and Taplejung at 5,000 to 7,000 ft.
Common reasons your tea has no smell
Age
Tea starts losing aroma compounds as soon as it's processed. Air slowly oxidizes the leaf: the essential oils break down, the volatile compounds escape, and the polyphenols change. Most loose leaf teas are best within 12 to 18 months of harvest.
Environment
Humidity above 65%, swings in temperature, and UV light all damage aroma. Tea also soaks up smells from whatever sits near it, such as spices, coffee, or cleaning products.
Processing and handling
A lot of aroma is lost before the tea reaches you. Long stays in warehouses, poor shipping conditions, the wrong packaging, and store displays that leave tea in light and air all take a toll.
Storage problems and solutions
Storage mistakes
- Clear containers let in UV light, which breaks down the aroma compounds.
- A cabinet near the stove lets the tea absorb cooking smells.
- The fridge causes condensation, and the leaves take on moisture.
- Plastic containers can pass their own odour into the tea.
Better storage
- An opaque ceramic or metal container with an airtight seal
- Room temperature of 20 to 25°C (68 to 77°F)
- Humidity of 45 to 60%
- A spot away from light, heat, and strong-smelling food
In a Canadian winter, keep tea away from heating vents, which blow dry, uneven heat. A pantry that stays at a steady temperature is better than a shelf by the window.
Water temperature: the biggest aroma factor you control
Of everything that affects aroma, water temperature is the one you have the most control over. Brewing at the wrong temperature is the most common reason tea smells and tastes flat. Use these ranges:
Temperature by tea type
-
Green tea: 75 to 85°C (167 to 185°F)
Water that's too hot destroys the delicate floral compounds and makes the tea bitter. -
White tea: 75 to 80°C (167 to 176°F)
White tea is the most sensitive to heat; hotter water kills its floral aroma. -
Floral oolong: 85°C (185°F)
This temperature brings out the honey-blossom notes. -
Dark oolong and black tea: 90 to 95°C (194 to 203°F)
Hotter water fully extracts the strong flavours and the malty, fruity aroma.
When each aroma compound comes out
Different compounds release at different temperatures:
- Around 70°C, amino acids such as L-theanine give up their sweet notes.
- Around 80°C, the essential oils release their floral notes.
- Around 90°C, theaflavins and tannins fully extract.
Water below the recommended range gives a flat, under-extracted cup. Water far above it scorches the leaf and leaves a bitter cup with none of the delicate aroma.
Other causes of aroma loss
If you brew different teas in the same pot without washing it in between, the leftover smells can cover up a delicate tea. Old teaware with a build-up of tannin residue does the same thing, absorbing and muffling fresh aroma.
Low-quality tea is another cause. The dust and fannings in most tea bags lose most of their essential oils during processing.
Finally, check your water. Heavily chlorinated or mineral-heavy tap water, common in many Canadian cities, can suppress aroma. Use filtered water if you can.
Ruby Black Tea: full aroma, full flavour
Dark cherry and cocoa, with a bold, smooth finish. Brew it at 90 to 95°C for 3 to 4 minutes and it fills the room. Grown at 5,000 to 7,000 ft in Nepal and processed by hand in small batches.
Try Ruby Black TeaStart fresh with high-aroma Nepali tea
If your tea has no smell, the Nepal Hills Tea Sampler Kit ($30) is a good place to start over. It has fresh, small-batch teas from Ilam and Taplejung, packed to keep their aroma. We ship across Canada, the USA, and select regions around the globe.
Frequently Asked Questions
Why does my tea smell like nothing?
There are three usual causes. The tea may be too old or badly stored, since air, light, and moisture break down the aroma compounds quickly. The water may be the wrong temperature; boiling water strips green and white teas of their delicate aroma straight away. Or the tea may have been low quality to begin with, like tea-bag dust that lost most of its essential oils in processing. Fresh whole-leaf tea that's been stored well and brewed at the right temperature will always smell strong and distinct.
How should I store loose leaf tea to preserve its aroma?
Keep it in an opaque, airtight container, ceramic or metal with a tight lid, at room temperature and away from light, heat, moisture, and strong smells. Never put loose leaf tea in the fridge. When you take it out, condensation forms on the leaves, and that moisture ruins both aroma and flavour. Stored well, most good loose leaf teas stay fresh for 12 to 18 months.
What water temperature preserves green tea aroma?
75 to 85°C (167 to 185°F). Boiling water at 100°C evaporates the floral essential oils that give good green tea its smell. Boil the water and let it rest for 3 to 4 minutes to bring it into range, and you'll notice a big difference in both aroma and taste.
Does filtered water make tea smell better?
Yes, by a lot. Heavily chlorinated tap water, which many Canadian cities have, reacts with the aroma compounds in tea. It creates off-flavours and dulls the clean floral notes. Filtered or soft mineral water gives a cleaner cup that smells noticeably stronger, and a simple Brita filter is enough.
Related Reading
- Fixing Bitterness in Green Tea: How to Steep It Properly
- How to Brew Loose Leaf Tea: The Complete Guide
- Why Is Darjeeling Tea So Floral? The Science Behind the Scent
- How Green Tea Processing Preserves Its Delicate Flavours
- Loose Leaf Tea vs Tea Bags: Is There Really a Difference?
- How Long Does Loose Leaf Tea Last?
