The Steep Hill Halent (SHH) microbiological screening program ensures the safety of cannabis by identifying the type and level of microorganisms present in each sample. Molds are ubiquitous, and small amounts are found in almost every sample. However, exposure to high levels of microorganisms such as molds and bacteria are known to cause health problems and can be particularly dangerous to patients that have existing medical conditions. Cannabis that contains bacteria should be destroyed. Most states have establish tolerance limits for microbiological contamination in cannabis.