Help with aquarium pump aeration

[Bartman]

I am brewing today first time with live yeast. Starter is ready and I decided I would aerate the wort with an aquarium pump and diffusion stone. Now I read I should filter the air. Well I don't have a filter and I want to brew today. Do I really need it? Isn't the diffusion stone enough. If not can I sanitize a nylon grain bag and put te pump inside? Thanks

 

[ajf]

I wouldn't try it without a filter. A grain bag is not fine enough to filter out the bacteria in the air that you will be pumping through your wort.

-a.

 

[Bartman]

Am I better off just to aerate by stirring /shaking?

 

[Beer_Guy]

I just use mine as is with no filter. Several batches so far with no problems.