Laboratory grade mushrooms are constantly being used in experiments and studies to help decide what amount of an active ingredient is best to be used for certain practices and how easily it can be implemented. Psilocybin mushrooms, for example, are used by scientists to determine how the properties of psilocybin can help treat certain mental disorders like depression and anxiety. As such, specific studies are constantly being performed on the higher quality laboratory grade mushrooms themselves in order to establish and perfect the standards according to which they are grown.
Current grading standards place laboratory grade mushrooms at the top of the proverbial food chain when it comes to which mushrooms should be used for certain experiments or others. Ecommerce sites offering pathogen free psilocybin spores for sale confirm that recent studies have narrowed down the criteria that have to be met for their effective use, and have pointed to factors like size and concentration as being the most important elements for that purpose.
US grade #1 is the highest grade for laboratory mushrooms, and has been established with a narrower set of tolerances and requirements for adequate sizing, resilience in the face of disease and damage, and proper shape. If you want to make sure your studies and research conducted using laboratory grade mushrooms will be successful, the US No. 1 standards are the ones you will have to adhere to.