I brewed two single malt (vienna) brews a week ago. In the fermenter they look very different.
![image-3803065315.jpg image-3803065315.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142367-ee2f6c469f0229040dd073ebdec1d3a0.jpg)
The one on the left I mashed for 60 minutes, checked for conversion with iodine then drained and sparged into the boil kettle. I didn't start heating until sparging was complete.
The one on the right I mashed for 90 minutes but started heating the first runnings while sparging. I batch sparged both brews.
Boiled both for 60 minutes, chilled through my cfc then pitched us-05 into them.
The mash times, and early heating and hop types are really the only difference between the two brews.
Why do they look so different?
A week in the fermenter and the one on the left has me worried.
![image-2514004395.jpg image-2514004395.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142369-082975d460da29a863c239ac133efcb9.jpg)
After agitation.......
![image-241821507.jpg image-241821507.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142370-0edef9775fbaf9fac0a6ea0243a6f1b3.jpg)
It was the first brewed that day.
Possibly it picked up something from my cfc?
Can somebody talk me off the ledge or confirm my suspicion ?
![image-3803065315.jpg image-3803065315.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142367-ee2f6c469f0229040dd073ebdec1d3a0.jpg)
The one on the left I mashed for 60 minutes, checked for conversion with iodine then drained and sparged into the boil kettle. I didn't start heating until sparging was complete.
The one on the right I mashed for 90 minutes but started heating the first runnings while sparging. I batch sparged both brews.
Boiled both for 60 minutes, chilled through my cfc then pitched us-05 into them.
The mash times, and early heating and hop types are really the only difference between the two brews.
Why do they look so different?
A week in the fermenter and the one on the left has me worried.
![image-2514004395.jpg image-2514004395.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142369-082975d460da29a863c239ac133efcb9.jpg)
After agitation.......
![image-241821507.jpg image-241821507.jpg](https://cdn.homebrewtalk.com/data/attachments/142/142370-0edef9775fbaf9fac0a6ea0243a6f1b3.jpg)
It was the first brewed that day.
Possibly it picked up something from my cfc?
Can somebody talk me off the ledge or confirm my suspicion ?