Gram Stain Kit, 7 Dropper Bottles - Crystal Violet, Safranin O 1.0%, Potassium Iodide 1.85%, 95% Denatured Ethyl Alcohol (4x25mL) - Includes

This Gram's Stain Kit is intended for use in microbiology labs and allows users to visually differentiate between different types of bacteria by staining them. The stain is used on a specimen collected on a sterile swab and smeared on a glass microscope slide. Bacteria are alive at this point and can be fixed onto the slide with a flame or rinse of methanol or ethanol. An immersion lens is not required for use with this kit. Generally, the shelf life of the various chemicals is one year, but this can vary depending on storage method. Overall, customers have found this kit to be useful for its intended purpose. Some have had difficulty with the staining procedure and fixing bacteria onto the slide, but this is to be expected with any laboratory procedure. There are no specific Pros or Cons listed in the reviews, but customers have found it helpful for identifying different types of bacteria.