I'm finding that my bottled beers give optimum flavour 3weeks after fermentation (say 1 week into cold conditioning) after that they tend to diminish disappointingly....anyone else have this trouble?
Correct ph of final product and low oxygen pickup at packaging helps.
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Just setting up and trying to replicate this. I rack of the trub to a co2 purged corny before 50% attenuation and then continue fermenting with a spunding valve, so that the beer carbs as it ferments under a blanket of co2. Any oxygen should then be consumed by the yeast or expelled by the heavier co2 produced. After fermentation I have a beergun to purge and fill bottles. Time will tell if this works.Professional breweries will go to huge lengths to avoid oxygen exposure after fermentation has finished. Everything will be done in closed systems under a blanket of CO2. I don't think you can achieve the same results as a home brewer without adding things like sulphite to scavenge any oxygen and even then, I don't know if it will be as effective.
Some even use oxygen scavenging crown caps, which sounds crazy but apparently does help.
I've got used to the idea that my hoppy brews will fade, although I think I normally get a good month or so before I feel it really starts to drop off. As a result, I've been upping the complexity of my malt bill and going for flavoursome yeasts so that when the hops fade, I still have an interesting beer.
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