styrene

634 µg per capsule

Plastics, like polystyrene”

Certified wine flavour standard used to train professional tasters to recognize and scale the intensity of plastics character. Styrene imparts a plastic character to wine, reminiscent of polystyrene. It is associated with storage of wines in plastic cooperage or plastic-lined transport containers. Residual styrene monomer in such containers can migrate into wine during storage to impart this taint.

Food grade | free from sensory impurities | extensively tested | safe to smell and taste.

Flavour cards

Flavour standard information

Technical specification

Assessment
The best way to detect plastics taints in wine caused by styrene is as follows. Cover the sample with your hand and swirl the glass to release the aroma. Remove your hand and take a single long sniff. Repeat as necessary.
Amount of flavour per capsule
634 µg per capsule
Threshold
The flavour threshold of styrene in wine is 50 - 210 µg / l.
Origins
Styrene is associated with storage of wines in plastic cooperage or plastic-lined transport containers. Residual styrene monomer can migrate from such lining into wine during storage.
Importance
Styrene omparts a plastic-like odour to wine which is reminiscent of polystyrene. It is associated with a moderate degree of consumer rejection and described by consumers as ‘chemical’, ‘plasticy’ or ‘contaminated’.
CAS registry number
The CAS registry number for styrene is 100-42-5.
Other names
  • ethenylbenzene
  • phenyl ethene
  • phenyl ethylene
  • styrol
  • styrolene
  • vinyl benzene
  • vinyl benzol
Remarks
Additional hydrocarbon taints can come from compounds such as tetrahydronapthalene which has been implicated in some types of cork-related taints.
Threshold distribution
Graph
Capsules per pot
10
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£79.00

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