Hey Guys,
I have lying awake at night over this one. Need to get it off my chest! Seems a lot of people are transfering to secondary fermenter. This is a good idea to get the beer off a the yeast/break/hop material. The problem that could arise is if the beer has fully attenuated and is transferred to secondary. At this stage there is little or no nutrients remaining. With no nutrients present the yeast are unable to remove any introduced oxygen, nor produce the "protective" CO2 blanket.
A further transfer to keg/bottle simply introduces further oxidation.
It must be remembered that oxidation is an ongoing process. Once it starts it cannot be stopped.
Like the small rust spot on your car (yep thats oxidation too) it starts small but it is not long until it really starts to expand, eventually converting a piece of shiny metal into a pile of orange dust!
My suggestion would be to tranfer beer to secondary BEFORE it is fully attenuated. That should ensure any O2 introduced post-fermentation can be metabolised.
ah
thats better
Darren
I have lying awake at night over this one. Need to get it off my chest! Seems a lot of people are transfering to secondary fermenter. This is a good idea to get the beer off a the yeast/break/hop material. The problem that could arise is if the beer has fully attenuated and is transferred to secondary. At this stage there is little or no nutrients remaining. With no nutrients present the yeast are unable to remove any introduced oxygen, nor produce the "protective" CO2 blanket.
A further transfer to keg/bottle simply introduces further oxidation.
It must be remembered that oxidation is an ongoing process. Once it starts it cannot be stopped.
Like the small rust spot on your car (yep thats oxidation too) it starts small but it is not long until it really starts to expand, eventually converting a piece of shiny metal into a pile of orange dust!
My suggestion would be to tranfer beer to secondary BEFORE it is fully attenuated. That should ensure any O2 introduced post-fermentation can be metabolised.
ah
thats better
Darren