THC range is the middle half of 17 public lab tests of Flap Jacks flower (2021–2022). Source: Cannlytics lab results, CC BY 4.0.
Flap Jacks is a hybrid bred from Flurry and Pancakes. You may also see it sold as Flapjacks, Flap Jax, Flapjack, Flap Jack.
Public lab results give a good picture of its strength: 17 flower samples tested between 2021 and 2022 came in at a median of 24.3% total THC (the middle half ranged from 23.5% to 27.9%). That puts it at the strong end of the market, so newer consumers should start low. Potency varies by grower and batch, so always check the label.