In alt.home.repair, on Thu, 4 Oct 2018 12:44:52 -0000 (UTC), Arlen
Holder > wrote:

>
>How do you keep your kitchen sponges free of bacteria?

I don't. I have a contract with the NIH and Cedars-Sinai research
hosppital to raise bacteria cultures typical of the mid-Atlantic region.

They use these to design anti-biotics against sponge-born diseases.

Every 3 months I package my used sponges in ziploc bags with imitation
ice and ship them to one or the other location, alternating, and they
have already shipped me a new set of color coded sponges.

They only pay my shipping expenses and the free sponges. I do this as
my contribution to society.