That is the question! This is what the late Graham Wheeler had to say on the subject:
Generally speaking, a properly formulated and properly brewed beer should not need priming. There should be sufficient residual sugars in the beer at the time of barrelling to provide secondary fermentation and condition.
Despite that, homebrew lore is that you should let beer finish fermenting, then start it going all over again by adding sugar to your bottles or PB, which is a safe if rather long-winded method.
I mentioned on the ‘C.D.’s Brewery’ thread about a rash purchase I made of two school kitchen boilers in 1984. This found me with a brewing capacity which far exceeded my capability, so in November that year I awarded myself an extra week’s holiday to attend a course at Ringwood Brewery in Hampshire.
There, I learnt from the owner, Peter Austin, that a typical fermentation was conducted at between 18C and 20C until its gravity had fallen to a quarter of its OG (around 2 days for their Best Bitter and 3 for Old Thumper), cooled to under 13C at which time the yeast was stripped off the top, rested for 4 days, then put into casks 6 to 7 days after brewing. Finings were added to each cask as they were being filled, and they were sent out to pubs a week later – although that could be reduced to just 2 days in an emergency!
Quite an eye-opener, and I haven’t used priming sugar, or any other type of yeast apart from that freshly collected from a Brewery, from that day to this.
The Founding Father of the Mini Brewery Revolution.
Generally speaking, a properly formulated and properly brewed beer should not need priming. There should be sufficient residual sugars in the beer at the time of barrelling to provide secondary fermentation and condition.
Despite that, homebrew lore is that you should let beer finish fermenting, then start it going all over again by adding sugar to your bottles or PB, which is a safe if rather long-winded method.
I mentioned on the ‘C.D.’s Brewery’ thread about a rash purchase I made of two school kitchen boilers in 1984. This found me with a brewing capacity which far exceeded my capability, so in November that year I awarded myself an extra week’s holiday to attend a course at Ringwood Brewery in Hampshire.
There, I learnt from the owner, Peter Austin, that a typical fermentation was conducted at between 18C and 20C until its gravity had fallen to a quarter of its OG (around 2 days for their Best Bitter and 3 for Old Thumper), cooled to under 13C at which time the yeast was stripped off the top, rested for 4 days, then put into casks 6 to 7 days after brewing. Finings were added to each cask as they were being filled, and they were sent out to pubs a week later – although that could be reduced to just 2 days in an emergency!
Quite an eye-opener, and I haven’t used priming sugar, or any other type of yeast apart from that freshly collected from a Brewery, from that day to this.
The Founding Father of the Mini Brewery Revolution.