Hi, I made a 5 gal recipe for an imperial stout that requires 15 pounds of grain. The problem is my water cooler mash/lauter tun is only 5 gals so even with a thick mash of 1qt water to 1lb grain it would be a very tight fit if it even did fit. I was thinking of using one pound less pale malt so that making it fit wouldn't be an issue and adding a little corn sugar to the boiling wort to boost the ABV to what it would have been with an extra pound of grain (about a half pound of corn sugar I think). I've never used corn sugar for anything other than priming before and I was just wondering if that little bit of corn sugar would noticeably affect the taste of my beer or if 1/2 pound (or maybe a pound if I want to make it a little stronger) is so little I wouldn't notice it?