When to compare aroma after changing vanillin particle size

Set up the comparison

Use the same base and temperature and record aroma during dispersion, after heating and after storage. Compare blind-coded samples at each stage.

Measurements to record

Dry-basis assay (%). For a new source, check identity and odour separately. Distinguish the material from ethyl vanillin. Melting range (°C). Use the corresponding vanillin reference standard. This value does not apply to ethyl vanillin. Record the sample ID and method revision for repeat testing.

Interpreting the results

Distinguish dissolution, processing loss and packaging effects. Confirm identity and labelling and approve the revised sample before substitution.

What to record

• Particle size
• Point of addition
• Heat history
• Sample packaging
• Aroma

Technical references

• ENVO: Vanillin product information ↗

Products and processes