I HAVE to cover my BK as of now, I'm using it on my glass stovetop. I do extract and steeping brews only to date. I'd guess about 70 gals so far.
I only get 3 gal boil, and that takes FOREVER! I don't cap the pot. I leave about a 1/2 gap on one side.
Almost as soon as I take the lid off, The boil goes away. AHHHHHHHH
All my 5 gal batches have tasty pretty damm tasty. So I notice no difference.
But then again, I don't know what DMS tastes like? LOL
BUT, After TOMORROW, I'll be on my way to trying the AG brewing.
Thanks to the magic of Christmas, I will now be able to do simply AG brews!
I WANTA LEAVE MY LID OFF ! ! ! LOL Merry Christmas