How should I select my flower samples?

There are many legitimate schools of thought on the issue of how to select unbiased samples from a “lot” of agricultural product. All of them share a common goal of selecting a sample that is representative of the lot in question. A representative sample is one that is composed of material that is similar in size, shape, density and overall quality to the majority of material in the lot from which it was selected.

June 18th, 2016, the WSLCB enacted a rule describing a sample selection protocol that they have determined to be adequate to implement as a minimum standard for our industry. The exact text of the WSLCB’s sampling protocols can be found on their website and in Washington Administrative Code 314-55-101.

Put simply, the WSLCB requires that the person selecting the sample select not one, but four unique samples not less than one gram each taken randomly from all four quarters of the lot. Those four samples will be combined into a single sample not less than 4 grams, and the person who pulled the sample will initial their name in the traceability system stating that they selected randomly and representatively and did not alter or adulterate the sample.

Please note that we are unable to accept flower samples that are less than 4 grams in weight, or that do not contain 4 or more separate pieces of flower sample.

In addition, we are unable to accept flower samples that contain more than 15% moisture. Please ensure all flower samples are dried to that level – our drivers are not permitted to transport uncured flower material, and we are unable to accept them if you drop your samples off in person at the lab.