Oil Seed Rape (OSR) (USA= Canola) honey granulates into a solid VERY quickly and it must be removed and extracted before it sets in the comb, but when is this?
OSR is now planted in the late autumn (Winter Rape) to start flowering in the spring as early as March it can also be planted in the spring (Spring Rape) to flower later maybe as late as July/August. This prolonged season can make it a nuisance, as your bees first work on Winter OSR and then go onto Spring OSR. It then dominates your honey crop for all that season as the bees prefer OSR nectar to almost all other potential nectar sources.
