I'm finishing up 20 L of this. Have about 9 L left, been in the bottle about a month.
Cooper's OS Stout Kit 1.7KG
Dark LME 1.3KG
Bitter up the LME with .5 Oz Willamette
Top up to 20 Litres and off we go on some Notty.
Started it on October 1, left in primary for 14 days, was drinking it before Halloween. I liked the flavours better when it was new than I do now, but still tastes great. Kept my ferm temps 64*-68*.