made my first AG batch last week, ended up with an OG of 1.072 from the northern brewer's lefse blonde kit. it calls for an OG of 1.053. i just took a sample this evening and the hydrometer read 1.013, and i took a little sip from my test tube and it was pretty horrible. like a really strong aroma of alcohol and tasted sulfury and stong...(not good) its hard to explain. any ideas of what i did wrong. i did boil for longer than was called for but only about 20 minutes to get it down around 5 gal. my mash temps were right on and i used 1.3 qt. of water/ lb. (11.5 lbs of grain) my sparge water temps were good as well, but i was only able to use about 2.5 gal to sparge since the size of my pot. any ideas?