The profile of cannabidiolic acid (CBDA)
Acidic cannabinoid • CBD precursor • 248°F decarboxylation
Cannabidiolic acid, better known as CBDA, is the naturally occurring acidic form of cannabidiol (CBD). It exists in raw cannabis and hemp before heat, time, or processing convert it into its neutral counterpart.
What is CBDA?
CBDA is a carboxylic acid cannabinoid produced directly by the cannabis plant. Unlike CBD, CBDA contains an additional carboxyl group (COOH) that changes how it behaves chemically and biologically.
In fresh, unheated cannabis, CBDA dominates over CBD. CBD appears only after CBDA is exposed to sufficient heat or aging.
CBDA and 248°F
The temperature 248°F (120°C) is often referenced as a point where CBDA begins to decarboxylate. Decarboxylation is the process that removes the acid group and converts CBDA into CBD.
This conversion is not instant. Time, airflow, and temperature stability all play a role. Lower temperatures slow the process. Higher temperatures speed it up but risk degrading delicate compounds.
Why CBDA matters
- It is the natural form of CBD in raw cannabis
- It demonstrates why heat changes cannabinoid profiles
- It highlights the importance of temperature control
- It explains why vaporization preserves chemistry better than combustion
CBDA vs CBD
CBDA and CBD share a backbone but behave differently. CBDA is less stable under heat and converts readily, while CBD remains stable at much higher temperatures.
Understanding CBDA helps explain why raw cannabis behaves differently than heated or vaporized material.
CBDA and vaporization
Controlled vaporization allows CBDA to convert gradually instead of violently combusting. This preserves more cannabinoids, terpenes, and the overall chemical profile.
When temperature control matters, chemistry rewards precision.
Frequently asked questions
Is CBDA psychoactive?
No. CBDA is non-intoxicating and does not produce THC-like effects.
Does CBDA convert to CBD when smoked?
Yes, but combustion destroys many compounds in the process. Vaporization converts CBDA more cleanly.
Is CBDA found in raw cannabis?
Yes. Raw cannabis contains mostly CBDA rather than CBD.
Why is 248°F associated with CBDA?
It marks the approximate onset temperature where CBDA begins to decarboxylate into CBD.