Cannabis Science

Cannabis Science news and information. Mary Jane’s Post is marijuana, hemp, and CBD news publication. We welcome peer-reviewed cannabis scientific research.

Latest Cannabis Science News

Cannabinoid ratios on COAs for custom entourage effects

Ever buy two products with the same THC percent and get two

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What “ND” really means on a cannabis COA, plus LOD vs LOQ in plain English

If you’ve ever scanned a cannabis COA and felt confident because you

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Moisture content vs water activity in cannabis flower, why both show up, and how to use them together

If you’ve ever stared at a COA and wondered why moisture content

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Microbial Counts on Cannabis COAs, how to read CFU numbers, pass limits, and real-world mold risk

If you’ve ever pulled up a lab report and seen “TYMC: 2.4×10³

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Delta-9 THC vs THCA on a COA, how to compare products without getting tricked by “total THC” math

Ever looked at a COA and thought, “How is this legal hemp

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How to read “Total THC” vs “Delta-9 THC” on a COA (and why labels can look higher or lower)

You pick up a jar that says “28% THC,” then scan the

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Water activity (Aw) on cannabis flower tests, what the number means for mold risk and shelf life

A cannabis flower jar can feel “dry enough” and still be risky.

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Mycotoxins in cannabis (aflatoxin, ochratoxin), what the COA should show, and when to walk away

If you’ve ever stared at a Certificate of Analysis (COA) and thought,

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Why two COAs for the same product can look different (sampling, test methods, and lab math)

Ever had a customer forward a second COA and ask, “Why is

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Mold in Cannabis Flower, The 7 Smells and Visual Clues That Matter, and What to Do Next

You crack a jar, expecting loud terps, and something feels… off. Maybe

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