Minette Y.
Yelp
I haven't had one beer from here that I didn't find delightful. All the pale ales I tried (they seem to favor this type) are rightly hoppy, the stout is almost like a nitro, thick rich, and only the tiniest bit smoky. They're all about the beer here, no other questions asked, so bring whatever you want (I saw full picnic spreads complete with knife and cutting board) and camp out for as many rounds as you can stand.
Make a Saturday of it. There's a little place to make multiple visits for cured meats just next door, and/or Maltby Street Market is a 10 minute walk, where you can get amazing pungent cheeses, fresh bread from St John, or even go hard: pregame with Gin cocktails, pick up some elaborate sandwiches and stash some dessert for drunken delight. Two more mini breweries are just nearby (Partizan about a 7 min walk, closes at 5pm and Brew by Numbers less than 5 min in the other direction, closes at 6). So, when Kernel closes at 4, choose a direction and make a run for it!