frothy beer from cornies

[andyb13]

Can anybody suggest a reason why my corny keg, is basically dispensing ¾ of a pint of froth, per pint.

I am new(ish) to using cornies and only using it for my second batch. The 1st batch I used CO2 to carbonate and no priming sugar, this time I have used 80 grams of priming sugar and no gas. The first an all grain brew the second a kit.

Once it clears it’s fine ( i.e. the frothy head settles out), albeit a little flat, and very frothy.

I was considering another corny but until I sort this out I am going to wait.

The tap I am using is a quick dispense one; would switching tap’s change the amount of froth; or does the force carbonation overcome these problems.

Having read some of the bits on here people have suggested a longer dispensing tube, what lengths and diameters have people got ( keep it clean)

Any advice gratefully received, thanks

 

[Wez]

What PSI is it at?

 

[andyb13]

hmmm yes, 1 quick check later

it's at 13 psi on the outlet; from memory that may be slightly higher than reqd. I can't put my hand on the paper for psi's to aim for at the mo.

Is that to high for a bitter

 

[Wez]

It's all temperature dependant really - i think the rule of thumb is serving 1 psi per degree c

(that may be wrong so wait for someone to confirm)

 

[prolix]

I pressurize to 20 psi when barrelling then vent gas a week before serving, then again at serving and serve at 3 psi. Comes out like pub beer

 

[Parva]

It also depends on the length and diameter of beer line from the keg to the tap. There are 101 variables, (temperature / carbonation / serving pressure / beer line length / beer line diameter / tap used), any one of these will make a difference to the outcome.

Firstly I would suggest getting some 3/8 to 3/16 JG fittings and some 3/16 piping (5-6ft should do it). Everything above plays a big part in the end product but this is my suggestion for room temperature beer and I'll add a picture of my crappy picnic tap that serves beer well at room temperature and hopefully you'll start to get the idea. Basically, you either serve cooler at lower pipe runs or less pressure or less carbonation beforehand or...... well, there's just a multitude of tweaks and each one can change the overall picture.