Fixing my gravity - a little help?

[Michael_K]

Not sure what on earth happened last night, but my projected OG of 1.060 ended up at 1.041

But that will be a different post... Right now, I wanna fix it.

I pitched at midnight last night, and woke up thinking that if I add some LME I can bring up my OG to where it should be. Here's where I need the help:

I have 2 gallons of 1.041, and I want to add .5 gallon of LME wort to make a 2.5 gal batch of 1.060. How much LME should I boil?? Does 1.5 lbs sound right?

Thanks in advance!

 

[wilserbrewer]

Points per gallon for LME is 36, or 1 pound in one gallon water gives you 1.036 gravity. So you will need enough for 2 gallons at 1.019 and an additional 1/2 gallon at 1.060...

PPG's required 2(19) + .5(60) = 68 PPG

Pounds needed 68/36 = 1.9 lbs

Maybe someone can check me on this please?


Wilserbrewer
Http://biabbags.webs.com/

 

[Michael_K]

What you just did up there appears to be some sort of wizardry. Thank you wilserbrewer (wizardbrewer).

A perfect example of how this site is AWESOME!

 

[wilserbrewer]

Here is the link I used...

http://www.homebrewexchange.net/resources/specific_gravity_fermentables

All that said, you sure you had the wort well mixed? Temperature also plays a big role....what temp was the wort? Your hydrometer is calibrated at 65 I believe???

If you tested hot wort you number will be off, quite a bit!

 

[Michael_K]

Thanks for the link.

The wort was well-mixed and cooled, I'm afraid. I'm really not sure why my efficiency was so bad.

I kept losing a bit of heat during the mash (my lid wasn't fitting on right), down to 148F, but I quickly raised it back up to ~152F.

I dunno, but it's not the first time I've had poor eff. Maybe need new equipment...

 

[wilserbrewer]

Check that your grain was crushed well enough??? Minor temp issues wouldn't likely sap your gravity so severely IMO.