Well I am new to brewing and jumped it feet first after wanting to brew for years. I started with all grain. I brewed my fourth batch a little over a week ago. Its a black ipa. Well my question is it has been over a week and still have stuff on top of beer. Not sure if it is infected or not. looks like yeast particles to me. Will there still be stuff on top like this after a week it had an OG of 1.070. Please let me know what yall think. Thanks