OK I have done 9 extract brews now and this was my first AG brew. I am kinda a info nut which in the sport is good but can be bad. I have I a IPA that is want to do. 9lbs 2-row malt
13oz cystal 40
1.2oz EK Golding
1oz Williamette
1oz Cascade
I figured in thermal mass on my mash tun and came up with .15 . This would mean for a mash at 150F I would need a strick temp of 170.9 (171)F. So I go for it. Well after about 20 min in the Mash Tun my mash was still 163F, OK so I add some cold water and BAM 134F. OK thata not good so I add a little hot water(170) and the Mash temp droped to 128F then over the next 15-20 min it came to 151F where I wanted it. This makes no sence to me at all. But I got the mash temp right and let it go. Then Spraged at 170F for 1 hour and 22min. The brew is now in the fermenter and very thing looks and taste good. I got 76%EFF on the mash and was happy with that. The temp thing going up and down is what I was worried about. I have no clue what was going on there. All I can think of is I figuered my thermal mass of the mash tun wrong. O well all is good.
13oz cystal 40
1.2oz EK Golding
1oz Williamette
1oz Cascade
I figured in thermal mass on my mash tun and came up with .15 . This would mean for a mash at 150F I would need a strick temp of 170.9 (171)F. So I go for it. Well after about 20 min in the Mash Tun my mash was still 163F, OK so I add some cold water and BAM 134F. OK thata not good so I add a little hot water(170) and the Mash temp droped to 128F then over the next 15-20 min it came to 151F where I wanted it. This makes no sence to me at all. But I got the mash temp right and let it go. Then Spraged at 170F for 1 hour and 22min. The brew is now in the fermenter and very thing looks and taste good. I got 76%EFF on the mash and was happy with that. The temp thing going up and down is what I was worried about. I have no clue what was going on there. All I can think of is I figuered my thermal mass of the mash tun wrong. O well all is good.