Bottling and kegging from the same batch.

[Hoppopotamus]

I've got approx 21 litres of stout in my FV which has been fermenting for a week and is ready for kegging. However I'd like to bottle a small portion of the brew (I have five empty ale bottles). I'm thinking that for such a small amount of bottles the easiest method is just to put half a teaspoon of sugar in each of the bottles before siphoning the stout in from the FV.

The other approach I thought of is to transfer all of the stout to the keg and prime as usual and then siphon some of the primed stout into the bottles. The problem with this method is that I don't usually stir the priming sugar into the keg (for fear of oxidation) so I wouldn't be sure how strongly primed the stout going into the bottles is.

Any ideas which would be best?

[JohnJeye]

I have done this everytime with my batches. I boil some water and priming suger together in a pan. Not much water mind, just enough. I usually fill 2 large bottles, 2 small and put the rest in a keg.

Spoonfull of the suger water in the small ones and 2 in the large ones. Rest into the keg. I don't think it would be a good idea to put it all in the keg and syphon off later. Chance to add air into your beer and also knock the CO2 out.

[Hoppopotamus]

Thanks for the info.

[Rookie]

I bottle part of every batch and use two or three prime tabs in each bottle. Unfortunately they are no longer being made and I will have to figure out something else when my supply is gone.
I think Coopers makes something close, I may give them a try.