Hey all,
Long time reader, first time poster (i know, cliche).
Anyway, I brewed my first home made all-grain recipe this weekend (meaning we didnt purchase an AG recipie from Autin Home Brew, and came up with it myself). Everything went extremely well, including the use of my new march pump, but thats not what my question is concerning.
We use this program called brew-pal for the iphone, it will convert gravity readings based on the temperature of the wort being measured. I find it very useful for that along with all the recipe creation and brew sheets you can print out, etc.
Anyway my question is in regards to gravity and the measuring of gravity. I use a hydrometer. But, I'll give you my recipe first so you can know what I'm working with:
18lbs Pilsen
1lbs special B
1lbs crystal 120L
2oz Perle (7.5 AA) at 60 minutes (begining of boil)
2 tablets of Whirlfloc at 15 minutes left
1oz Perle (7.5 AA) at 0 minutes (end of boil)
Pretty simple recipe, but should be good.
Anyway, I take gravity throughout the process. About every 10 minutes during the mash and every 15 during the boil.
So I mashed out and pumped into the boil kettle. At that point I stired well and took a gravity reading, I was at 1.052 (using brewpal to correct the gravity reading based on the temperature) and thought "great, once I boil down I should be on target. Well, when the boil was done I took another gravity from the output of the CFC which output the wort at around 68 degrees. That gave me a reading of 1.045!! I was VERY confused. I was thinking, wait, boiling off should INCREASE gravity! not decrease it! what happened?!
So now I'm convinced that I'm not taking gravity readings properly or something. Has anyone experienced their gravity actually decreasing from begining of the boil to the end?
Long time reader, first time poster (i know, cliche).
Anyway, I brewed my first home made all-grain recipe this weekend (meaning we didnt purchase an AG recipie from Autin Home Brew, and came up with it myself). Everything went extremely well, including the use of my new march pump, but thats not what my question is concerning.
We use this program called brew-pal for the iphone, it will convert gravity readings based on the temperature of the wort being measured. I find it very useful for that along with all the recipe creation and brew sheets you can print out, etc.
Anyway my question is in regards to gravity and the measuring of gravity. I use a hydrometer. But, I'll give you my recipe first so you can know what I'm working with:
18lbs Pilsen
1lbs special B
1lbs crystal 120L
2oz Perle (7.5 AA) at 60 minutes (begining of boil)
2 tablets of Whirlfloc at 15 minutes left
1oz Perle (7.5 AA) at 0 minutes (end of boil)
Pretty simple recipe, but should be good.
Anyway, I take gravity throughout the process. About every 10 minutes during the mash and every 15 during the boil.
So I mashed out and pumped into the boil kettle. At that point I stired well and took a gravity reading, I was at 1.052 (using brewpal to correct the gravity reading based on the temperature) and thought "great, once I boil down I should be on target. Well, when the boil was done I took another gravity from the output of the CFC which output the wort at around 68 degrees. That gave me a reading of 1.045!! I was VERY confused. I was thinking, wait, boiling off should INCREASE gravity! not decrease it! what happened?!
So now I'm convinced that I'm not taking gravity readings properly or something. Has anyone experienced their gravity actually decreasing from begining of the boil to the end?