Beer Soap

[ADDLED]

Ive made Summer Lightning a few times but the current batch is he first time ive treated the water, and tonight ive had a bit of a worry about the taste of the beer.
I used Bobek and Auroroa last weekend and for the first 5 days checking the gravity it was really nice; started at 1.058, grapefruity, malty and gravity dropping a point a day, tastes really good. Tonight i checked, its got to 1.010 so im happy with that, but it tastes of washing up liquid.

I have a spray bottle of videne and always zap the tap and nozzle before and after i take a sample, i spray the fv lid if i ever lift it (which i havent), i dont dip anything into the fv at all, so i cant work out if this is an infection problem or another potential problem.

Ive read on the forum of problems with off flavours in beer during fermentation and when theyre matured theyve been fine. Am i worrying to much?

[Parva]

I've tasted samples from the trial jar and have been determined that I've created a batch of TCP or vinegar many, many times and they've turned out to be great beers. Samples from the FV can often taste wildly different to what you get once the beer has been bottled / kegged and matured. I personally would continue and bottle / keg as normal unless you are absolutely certain that it's had it. Fermenting beer and green, unconditioned beer gives some very wierd smells / tastes.

[ADDLED]

Washing up liquid isn't a good sign. Autolysis is usually charachterised by a burnt rubber flavour but the break down of fatty acids can also cause soapy flavours. If this is the case it's terminal.

It's usually caused by really long primary fermentations but can occur quite quickly if the yeast isn't in the best of health when its pitched and or a lack of aeration. (I had a Muntons Old Ale that tasted of burnt tyres after 7 days in the fermenter).

Great, Ive made 25 litres of 'West Ham' Beer!
Aeration was fine, if a little too vigourous cos the wort in the fv looked like a foam sundae and i had to scoop 6 inches off before pitching the yeast. I made sure i hydrated the yeast in sterile cooled kettle water, the primary ferm started last saturday so its only 5 days to date, yeast was a dry packet of US-05 that had been in the garage for 2 weeks unopened.
It tasted lovely up to last night, this afternoon i have 25ltrs of beer flavoured soap, or is it soap flavoured beer?

[Parva]

It is soap that is being made when the fatty acids break down and it this is the case, no amount of conditioning will undo it (you can take soap out of beer once it's been put in).

You can? Never tried that one. I would bottle / keg it and see what you get.

[ADDLED]

I left the beer alone for a few days and tried it last night and its not as pronounced. I might keg it today then see what i get in a few weeks when its cleared.
tks all.