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Critical Jack No 10 Shop
The Official Cannabis collection · sheet 10No 10 · Critical JackTHC & terpenes

Lab data

Critical Jack potency: THC and CBD from only eight lab tests

In only eight tests, a very small sample, Critical Jack flower had a median total THC of 15.01%, with the middle half of results between 13.41% and 20.68% and the whole sample between 7.55% and 21.55%.1 CBD is low, and only one of the eight tests reported individual terpene values, too few for a terpene profile.1

Small sample: only 8 matched tests. Treat the figures on this page as indicative, not definitive.1

15.01%median total THC (small sample)
13.41%–20.68%middle half
10.37%–21.33%middle 80%
0.0%of tests at 25% THC or more
8tests · 2 labs

THC distribution

Total THC across 8 tests

0 10 2–3% THC: 0 tests 3–4% THC: 0 tests 4–5% THC: 0 tests 5–6% THC: 0 tests 6–7% THC: 0 tests 7–8% THC: 1 tests 8–9% THC: 0 tests 9–10% THC: 0 tests 10–11% THC: 0 tests 11–12% THC: 1 tests 12–13% THC: 0 tests 13–14% THC: 0 tests 14–15% THC: 2 tests 15–16% THC: 1 tests 16–17% THC: 0 tests 17–18% THC: 0 tests 18–19% THC: 0 tests 19–20% THC: 0 tests 20–21% THC: 1 tests 21–22% THC: 2 tests 22–23% THC: 0 tests 23–24% THC: 0 tests 24–25% THC: 0 tests 25–26% THC: 0 tests 26–27% THC: 0 tests 27–28% THC: 0 tests 28–29% THC: 0 tests 29–30% THC: 0 tests 30–31% THC: 0 tests 31–32% THC: 0 tests 32–33% THC: 0 tests 33–34% THC: 0 tests 34–35% THC: 0 tests 35–36% THC: 0 tests 4%8%12%16%20%24%28%32%36% median 15.01% Total THC, % by weight
One-point THC bands; shaded: middle half of results. 8 flower tests, 2016-12-02 to 2022-10-03.1

THC by year

Too few tests per year to show a trend: no year has 20 or more tests (2016: 1, 2017: 3, 2020: 2, 2022: 2).1

THC by state

No state has 10 or more matched tests.

Terpene profile

Only 1 of the 8 matched tests report individual terpene values, too few for a profile (we chart terpenes reported by at least 10 tests).1

How Critical Jack compares

Lab-tested THC across 17 well-known strains

12% 16% 20% 24% Wedding Cake Wedding Cake: median 23.01%, middle half 20.24%–25.70%, 3,085 tests 23.0% n=3,085 Blueberry Blueberry: median 21.91%, middle half 18.40%–25.23%, 411 tests 21.9% n=411 Sour Diesel Sour Diesel: median 21.68%, middle half 19.00%–25.30%, 1,071 tests 21.7% n=1,071 Gelato Gelato: median 21.49%, middle half 18.90%–24.63%, 1,845 tests 21.5% n=1,845 OG Kush OG Kush: median 20.87%, middle half 18.06%–23.36%, 379 tests 20.9% n=379 Super Lemon Haze Super Lemon Haze: median 20.84%, middle half 18.41%–23.48%, 1,543 tests 20.8% n=1,543 Northern Lights Northern Lights: median 20.03%, middle half 17.28%–22.05%, 406 tests 20.0% n=406 Strawberry Cough Strawberry Cough: median 20.00%, middle half 15.88%–23.00%, 231 tests 20.0% n=231 Blue Dream Blue Dream: median 19.96%, middle half 17.62%–22.37%, 2,118 tests 20.0% n=2,118 Pineapple Express Pineapple Express: median 19.80%, middle half 17.54%–21.75%, 461 tests 19.8% n=461 Girl Scout Cookies Girl Scout Cookies: median 19.72%, middle half 17.80%–21.92%, 567 tests 19.7% n=567 Jack Herer Jack Herer: median 19.59%, middle half 17.13%–22.00%, 910 tests 19.6% n=910 Green Crack Green Crack: median 19.52%, middle half 16.79%–21.73%, 1,236 tests 19.5% n=1,236 Durban Poison Durban Poison: median 19.45%, middle half 17.33%–21.99%, 528 tests 19.4% n=528 Trainwreck Trainwreck: median 18.65%, middle half 16.67%–21.42%, 248 tests 18.6% n=248 Granddaddy Purple Granddaddy Purple: median 17.87%, middle half 15.00%–21.55%, 512 tests 17.9% n=512 Critical Jack Critical Jack: median 15.01%, middle half 13.41%–20.68%, 8 tests 15.0% n=8 Median total THC (dot) and middle half of tests (bar)
Every strain processed with the same matching rules from the same dataset.1

How published THC figures compare

Dinafem lists 15–20% THC and 0.01–0.2% CBD for its seeds, and its own lab reported 17.39% total cannabinoids and 2.567% total terpenes for one sample; total cannabinoids is not the same measure as total THC.2 Silent Seeds repeats 15–20%; SeedFinder’s copy of the breeder text says 14–18%.3,4 Strain databases publish a single figure: Leafly 20% THC (and 2% CBG), AllBud 20%, Wikileaf a highest test of 20.0%.5,6,7

In our small sample the highest result was 21.55% and 90% of tests fell below 21.33%, so the published 20% sits near the top of what only eight tests show rather than in the middle.1 Leafly lists terpinolene as the dominant terpene, followed by caryophyllene and pinene; our data cannot check that, because only one of the eight tests reported individual terpene values.1,5

Download the data

The 8 matched tests behind this page, one row per test: state, test date, lab, product name, product type, total THC, total CBD and terpenes.

Download CSV Read the methodology

License: CC BY 4.0. Credit: “Source: Cannlytics, cannabis_results (CC BY 4.0), analysis by Official Cannabis.” The data were filtered and aggregated from the original.

Limits of this data

  • Coverage is thin and dated. Massachusetts (4) and Michigan (4) supply all eight tests, dated 2016–2022 and spread too thinly over those years to read a trend. Oregon and Rhode Island results carry no product names and could not be matched.
  • Two labs, two methods. One lab supplied 50.0% of these tests (2 labs in total). Of the eight totals, four were computed as Δ9-THC + 0.877 × THCA from the certificate and four were taken as reported, so we publish the median and the full range rather than a mean.
  • We matched names strictly: 14 results under near-miss names, 12 of them flower, led by "Nature's Critical Jack #3" (10 results) and 3 products labelled "Critical Jack Herer", are excluded and counted, and duplicate certificates are removed.
  • Terpenes and CBD are sparse: only one of the eight tests reported individual terpene values (Massachusetts), and 2 of the 4 tests that reported CBD found none, none reached 1%, and the highest was 0.20%. Michigan’s public results report neither CBD nor terpenes.

Sources

  1. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 3, 2026.
  2. Dinafem Seeds, Critical Jack: feminized seeds, specifications, lab analysis and awards. Accessed Oct 3, 2026.
  3. Silent Seeds, Critical Jack feminized seeds. Accessed Oct 3, 2026.
  4. SeedFinder, Critical Jack (Dinafem): strain info, breeder description and grow reports. Accessed Oct 3, 2026.
  5. Leafly, Critical Jack aka Critical Jack Herer strain information. Accessed Oct 3, 2026.
  6. AllBud, Critical Jack marijuana strain information and reviews. Accessed Oct 3, 2026.
  7. Wikileaf, Critical Jack strain. Accessed Oct 3, 2026.