Quick help needed

[Nottsbeer]

Hi, in the middle of brewing a bitter. Preboil target gravity was 1.033. efficiency has spiked and I hit 1.042!! I've added more water to get preboil at 1.035. should I continue with hops at predetermined weights, or do I need to up the additions? Not sure how to calculate this...I think I should up the hops but will be guessing by how much! Volume in the boiler is 22.5l as was only planning to make a 15l batch. Maybe the small vol doesn't make much difference and I should just carry on as planned.

 

[MashBag]

carry on as planned.

You don't know how accurate your measurements are?

 

[Nottsbeer]

You don't know how accurate your measurements are?

I knew how accurate things were until the overshoot. Think I'll up the hops slightly and carry on as normal. Probably overthinking things! I am using brewfather app but not sure if I can add in the new preboil water vol to get new info. Cheers.

 

[Buffers brewery]

My thinking (and I’m probably wrong) is the gravity readings are an indication of potential alcohol content not flavour. Hop additions are to do with flavour, not alcohol. If your brew volumes are as planned I’d carry on as planned.

 

[Nottsbeer]

My thinking (and I’m probably wrong) is the gravity readings are an indication of potential alcohol content not flavour. Hop additions are to do with flavour, not alcohol. If your brew volumes are as planned I’d carry on as planned.

My thinking (maybe incorrect) is that by adding an extra 2.5l water, the final vol will be greater, thus diluting bitterness a bit, therefore to up the hop additions. Maybe it's not something to worry about in my small vol batch! In the past I have occasionally added water to reduce the OG after boiling to hit my target gravity and never thought about what this ma do, but the vol of water was never much more than 1l. Think a quick panic set in as was getting the boil going. End of day I'll have a nice brew and I'd probably not notice bitterness changes anyway

 

[An Ankoù]

Either, leave things alone with the bittering hops or recalculated the new bittering charge based on the new volume.
Maybe a small volume charge doesn't make much difference, but its not a small change, it'll be an increase of about a third so increase any late, flavour and aroma hop charges correspondingly.
(you should end u with about 20 litres, not 15, after the boil)
But, at the end of the day, if you just go with what you've got, it'll still be decent beer.