My first batch is too sweet - What did I do wrong?

[bendit]

I left a bottle open overnights and took a measurement with a hydrometer:

1.016 @ 60f

It's exactly what my recipe called for. ???

 

[Bobby_M]

I'm going to call it poor hop utilization due to a weak boil.

 

[shecky]

I'm going to call it poor hop utilization due to a weak boil.

Given that your gravity is on, I'm going to second Bobby, who knows far more than I.