CBN
Cannabinol, which forms as THC breaks down with time, heat, light and air. A higher CBN number on an older batch is one sign of how long it has sat and how it was kept.
Related terms
- THC
Delta-9 THC in its active form, already converted before any heat. On raw flower it is usually a small number sitting next to a large THCa. - Harvest date
The day the plants were cut. Counting forward from it tells you how long the flower has spent drying, curing and waiting on a shelf. - Package date
The day the product was sealed into the package you are holding. It can be weeks or months after harvest.