Product managers often start with a product requirements document (PRD). A product requirements document defines the product you are about to build: It outlines the product's purpose, its features, functionalities, and behavior. Next, you share the PRD with (and seek input from) stakeholders - business and technical teams who will help build, launch or market your product.
For bacteria: The two major families of common bacteria are distinguished by the chemistry of their walls, specifically the ability of iodine to mordant their staining with crystal violet and prevent its being removed with strong solvent. Gram positives include staph and strep, while gram negatives include e. Coli.
I've read that wood conditioner (also known as pre-stain) helps prevent blotching, but it 'designed' for use with soft or porous wood. More accurately wood conditioners are designed for blotch-prone woods, which softwoods are known to be.