Agarb is essential to microbiology as the main component in dehydrated culture media, currently more than 300 hundred different product types. Applications include clinical diagnosis, quality control and food safety procedures. As well as its central role in microbiology, agar finds applications in molecular biology. 

The critical factor in microbiology is the inert nature of agar. Its absence of inhibitors means it does not affect the growth of target microorganisms. In addition, agar has other properties such as excellent transparency, high hysteresis and reproducibility (batch to batch consistency).

The quality of the bacteriological agar of Iberagar is widely recognised internationally.