The only important feature in rape honeys as well as blossom is sulphur
content. Rape blossom seems to be the source for sulphur and all
the samples contain rape pollen to some extent, which explains
sulphur in the aroma profiles of most of the samples. Alder buckthorn
honeys tend to have more floral and honey notes and less
green and sweet/candy characteristics. Additionally, sulphur was
not present (over threshold), unlike the other honey samples.