Starch Conversion
Posted: Mon Sep 17, 2018 1:21 pm
Ok I am not sure where to start so I will do it at the beginning;
My recipe, 14.5 lb. cracked corn
2 lb. Rye (malted)
1.5 lb. 6 row Barley (malted)
I soaked the corn in 2 gal. of soft water (my well water is extremely high in magnesium) for 2 days.
Then boiled 4 Gal. of RO water with salts added. At the point of starting to boil I shutdown the fire and added the corn along with 1/2 tsp. of amylase.
Then brought the temp back up to 185 f. I had gleization of the corn inside of an hour. At that point the corn would hold a spoon vertical in the middle of the pot
. I dropped the temp down to 151f and added the malt with another 1/2 tsp of amylase. It started to liquify almost immediately. I then held the temp. between 147 and 151 for 1 hour. I checked my conversion and it was as black as the ace of spades. A cooled sample had a PH of 4.6 and the refractometer measured 1.058.
What in the world am I doing wrong? This is my third run and I have yet to get good conversion. I have brewed for a long time, mashing is not new to me but this much corn is. I have read till my eyes bleed and am still at a loss, any help would be much appreciated.
My recipe, 14.5 lb. cracked corn
2 lb. Rye (malted)
1.5 lb. 6 row Barley (malted)
I soaked the corn in 2 gal. of soft water (my well water is extremely high in magnesium) for 2 days.
Then boiled 4 Gal. of RO water with salts added. At the point of starting to boil I shutdown the fire and added the corn along with 1/2 tsp. of amylase.
Then brought the temp back up to 185 f. I had gleization of the corn inside of an hour. At that point the corn would hold a spoon vertical in the middle of the pot
. I dropped the temp down to 151f and added the malt with another 1/2 tsp of amylase. It started to liquify almost immediately. I then held the temp. between 147 and 151 for 1 hour. I checked my conversion and it was as black as the ace of spades. A cooled sample had a PH of 4.6 and the refractometer measured 1.058.
What in the world am I doing wrong? This is my third run and I have yet to get good conversion. I have brewed for a long time, mashing is not new to me but this much corn is. I have read till my eyes bleed and am still at a loss, any help would be much appreciated.