All CBD products are extracts from low-THC cannabis plants, grown legally under licence as industrial hemp.
Once the plants have been harvested, they are allowed to dry slowly and naturally. Only the flowering tops are used for producing the highest quality oil and these are crushed and ground finely before being processed by supercritical CO2 extraction equipment.
When pressurised and gently heated CO2 changes from a gas into a ‘supercritical’ state somewhere between a gas and a liquid and it becomes a powerful solvent which will extract the oil from the plant matter.
With the pressure varied it can be adjusted to extract particular components so ‘tuned’ to extract maximum CBD but leave traces of THC behind. Also, because all this takes place at relatively low temperatures, the volatile terpenes and flavonoids in the plant are more easily preserved in the oil and these are important to the beneficial ‘entourage effect’ of CBD oil.
The oil which results from the extraction process can be used as it is or
converted into different forms.
For instance, for use in a spray it will need to be diluted
with a carrier oil to thin it down. Or as a body salve it will
be emulsified to form a cream. It may be converted into a
vape liquid by adding vegetable glycerine or propylene
glycol to help it turn into vapour. CBD crystals are the
most refined form of CBD. They do not contain all the
other components of the whole plant extract, they are
pure CBD and nothing else.
It’s largely a matter of personal choice which type of CBD
you use. Experiment and find out what suits you best.