Cast iron is inherently porous, that's what you fill up with the
seasoned oil.  When seasoned, it will be pretty smooth.

If you have large lumps or holes, that's a problem. 

On 06/06/2016 12:28 PM, Dan Nave wrote:
> When I bought my cast iron skillet several years back I noticed that
> the surface was quite uneven, not flat and smooth like you would
> expect.  After using it seems pretty flat but I wondered if it would
> have been better if the frying surface was buffed down to make it
> flatter before seasoning.  A
> Anybody do this?

-- 
Jerry Durand, Durand Interstellar, Inc.  http://interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886