The strongest strains are obviously those with the highest THC content. Generally speaking, anything that surpasses 20 percent could be considered highest thc strains pretty potent. However, let’s say one grower’s harvest of Kosher Kush tested at 22 percent THC. Due to differences in environmental conditions, growing techniques, and genetic phenotypes, another grower’s Kosher Kush could come out wildly below the mark and test at, let’s say, 15 percent.]
THC (delta 9-tetrahydrocannabinol) levels are expressed as a percentage, and are an indicator of the potency of cannabis the plant produces. THC is a chemical associated with strong psychoactive effects, such as feeling creative, curious, excited or relaxed. It is also known to stimulate appetite, and give a feeling of altered space-time perception.