It’s also worth noting that even if alternatives superior to agar were found, scientists are reluctant to abandon established protocols (even when microbiologists do use other jellies, they often still add agar to the mix, for example, to increase the gel strength of the solid media). As agar has been the standard gelling agent in microbiology for around 150 years, an enormous infrastructure of standardized methods, reference values, and quality control procedures has emerged around its specific properties. Switching to a different medium (even a superior one) means results may not be directly comparable to decades of published literature or to other laboratories’ findings.
Besides new pain or stiffness in the morning, your bed may show you real signs of breakdown if you notice lumps, sagging, and new creaks or noises, Jeffcoat said. You may also develop allergies as the bed material starts breaking down, she added.
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