I'm relatively new to home brewing. I have a Brewzilla and was following an all grain recipe and they had me sparge up to 7 gallons. I thought this seemed like too much, but followed it along anyway. I now have a wort with an OG of 1.032 and the recipe said I should see around a 1.055. I put about 6 gallons into my Fermzilla. Does someone know how much corn sugar I should add to raise it up to 1.055?
1 lb of table sugar is 46 (or 46.21) points per pound per gallon (PPG). In 6 gallons, that's an OG increase of.. 46.21 / 6 = 7.7 To get 6 gallons of 1.032 wort up to 1.055 (i.e. a gravity incease of .023), you're looking at almost 3 pounds* of table sugar, or even more corn sugar. Sugar is not the best way to make up a gravity difference of .023. It's going to result in a beer with higher ABV, thinner body and weaker malt flavor. You'd be better off adding Dry Malt Extract, which is about 44 PPG. *Actually, you'd need a litte more than that, because the sugar will increase volume as well. But this is back of the envelope.
About 3.14 lbs, ignoring the additional volume from the DME. Also, you really should boil it in a small amount of water to sanitize it, which will also increase the volume. But that would get you in the neighborhood.
Thank you very much! I also downloaded your spreadsheet (very impressive) and intend on learning all of this.
Couple quick questions... The 1.032 OG, is that the 7 gallons pre-boil or is it the 6 gallons post-boil? Is that reading at boiling temps or room temp?
