Eurofin

Quantifies THC, CBD and minor cannabinoids. Required on every compliance panel and on the label of any product sold at retail.

Measures lead, arsenic, cadmium and mercury. Cannabis is a hyperaccumulator, so contaminated soil shows up in the finished product.

Screens for total yeast and mould, coliforms, E. coli, salmonella and Aspergillus species. Required before any product reaches a patient.

Detects aflatoxins and ochratoxin A produced by mould. Mandatory in most regulated markets because the toxins survive processing.

Screens for regulated pesticide residues at parts-per-billion levels. A failure here is the most common cause of a batch being destroyed.

Water activity above roughly 0.65 Aw lets mould grow in the package. Cheap to run and the single best predictor of shelf-life failure.

Identifies and quantifies the aromatic compounds that drive strain character. Usually optional for compliance, but a major marketing input.

Repeat testing across a storage window to establish an expiry date and prove potency claims hold over time.