Since California began its new testing protocol on all cannabis products in July, nearly 20% have failed to pass muster, according to a report from the Denver Post. While some blame sloppy cannabis growers and manufacturers, others say the testing regulations and facilities themselves are sloppy and inconsistent.

Of the 10,695 product batches tested between July 1 and August 29, 1,904 were rejected. Of the failed batches, 65% were due to label errors, meaning their THC content did not match the amount stated on their labels.

Cannabis products in California have to come within a 10% margin of their labeled THC content. So, if a chocolate bar says it contains 15% THC, it can contain no less than 5% and no more than 25%

Other batches were found to contain no-no compounds. 400 batches tested positive for unacceptably high levels of pesticides, while another 114 were found to contain impurities like mold or bacteria.

10% of flowers were halted at the testing stage, while 20% of extracts were rejected.

Exactly which bacteria and mold stay in your cannabis and which has to go is a spot of contention in the cannabis industry. Swetha Kaul, chief scientific officer of the Santa Ana-based testing company Cannalysis has said that the state isn’t being picky enough, and that they should “create a bigger net to catch things.”

The California Growers Association recently sent the state’s health department a letter with some other complaints about current testing requirements. “Testing is currently costly, slow, and inconsistent,” the letter stated. According to the post, a small outdoor cannabis farm can spend anywhere from $5,000 to $10,000 on testing.

“Mandatory statewide testing is a new thing and it’s going to take some time for everything to run smoothly, but on the whole we’re pleased with how things are progressing,” Bureau of Cannabis Control spokesman Alex Traverso said.

Photo via Flickr user WeedPornDaily