Alcohol bite

[esp]

I brewed this batch about 5 weeks ago. After a week in the bottle I decided to try one, and it was a delicious smoky flavor that settled nicely into a nice banana/citrus flavor. I tried one about a week later and the smoke flavor had diminished to being very quick and subtle and ending up in a strong banana finish, but I noticed a bit of alcohol bite/warmth. I'm having a couple now and the same tendency remains: light smoke, alcohol bite, and finish with a banana.

I'm wondering what could cause the alcohol bite and how to reduce it in the future.

3lbs Wheat Dry Extract
4lbs White Wheat Malt
1lb Flaked Wheat
2lbs Pilsner malt

1oz glacier (60 min)
1oz citra (5 min)
1oz sweet orange (5 min)
Wyeast Belgian Wheat Yeast (3942)

90 min mash @ 154
Batch sparge @ 170

Boil 60 minutes

Beer Smith says:

OG (about): 1.067
FG: 1.012

 

[karbinator]

I get that problem when my ales rise into the 70's or more during fermentation.

 

[Sea]

I get that problem when my ales rise into the 70's or more during fermentation.

Yep, too high ferm temp causes fusel alcohols to form, giving you the warm/alcohol flavor.