Cape Aloe Ferox Bitter Crystals

What the brand says

Bitter crystals are the dehydrated bitter fraction of the Cape Aloe (otherwise known as Aloe Ferox) leaves. The bitter, yellow sap is collected by arranging the aloe leaves in a ‘tapping’ position, whereby the yellow sap drips out from the leaf into a catch. Decanted into a larger container, moisture is evaporated from the bitter faction by heat, leaving solid, black slates that are crushed into small, crystal-like particles.