Bacteria On Countertops
Rub a sterile swab over the areas of your counter most prone to.
Bacteria on countertops. As bathroom sink bacteria splash onto countertops the toothbrush holder and toothbrushes easily become infected too. Unchecked bacteria on your countertop can double in numbers every 20 minutes. While granite itself doesn t nourish bacteria food preparation on granite countertops may leave moisture and traces of fats proteins and carbohydrates in the stone pores that bacteria can live on. Use a sterile swab to take your samples.
Just like in the kitchen the counters and the sink are problem areas. Prepare a small sample of agar in the petri dish as directed on its package. Agar is a gelatinous substance used. Under unaltered conditions a bacteria colony will last a few hours on this type of surface and even less if an attempt at sanitizing is made.
This only underlines the importance of. Coli and mrsa can survive for several months on inanimate surfaces while infectious yeasts can last for weeks. A countertop tile floor or glass surface is a poor surface for bacteria. How to test for bacteria on kitchen counters step 1.
Some bacteria including e. The least favorable type of surface for bacteria to live on is a hard non porous surface.