If porous things like certain ceramics are bad to use because they trap and grow bacteria, how come we can use the same sponges for things like washing our body and for dishes?

Question

If porous things like certain ceramics are bad to use because they trap and grow bacteria, how come we can use the same sponges for things like washing our body and for dishes?

In: Biology

Answer 1

because we are constantly exchanging the water held by the sponge. the sponge is also exposed to soap frequently.

if you set a sponge in a tub of dirty water and left it there for several days, it would be moldy and unsuitable for further use

for example; the beef broth will seep into the ceramic and spoil; if not properly cleaned before the next use that spoiled beef broth will contaminate the next foodstuff