| Primary (First) - bread crust |
| Secondary (Second) - bread crust |
| Tertiary (Third) - bread crust |
| FR | baked | bread fragrance |
| FL | | coniferaldehyde |
| | odor: sweet graham cracker cookie bread crust bread baked toasted grain barley roasted barley vanilla custard dairy |
| | flavor: graham cracker cookie bread baked toasted grain custard roasted barley vanilla powdery |
| FR | bitter | orangeflower concrete |
| | odor: strong floral sweet woody breadcrust |
| Quaternary (Fourth) - bread crust |
| FL/FR | 2- | acetyl pyrazine |
| | odor: popcorn nutty corn chip bread crust chocolate hazelnut coffee |
| | flavor: Roasted, nutty, bready and yeasty, with popcorn and corn chip nuances |
| FR | | apple crisp fragrance |
| FR | bitter | orangeflower concrete morocco |
| | odor: strong floral sweet woody breadcrust |
| Quinary (Fifth) - bread crust |
| FR | | apple pie fragrance |
| Senary (Sixth) - bread crust |
| Septenary (Seventh) - bread crust |
| Octonary (Eighth) - bread crust |