priming a stout

[stigman]

Just about ready to bottle my second kit. First was bulldog double IPA which I primed with one 5ml teaspoon per bottle of dextrose. That turned out nicely carbonated for the style. But now ready to bottle there Easter brew chocolate stout, which came with identical instructions, I was thinking I should add half spoon this time as obviously don't want an overly fizzy stout.
Second issue I have is, I wanted to batch prime in a bottling bucket this time but don't have any scales to weigh out my dextrose. Does anybody know how much 5ml of dextrose weighs?

 

[brumbrew]

A body building forum says 1.25 of a tsp. So one and a quarter tsp ????

Is 4g

Roughly?????

 

[Leon103]

5ml will be 5g. I would aim for around 4g per litre

 

[BeardySi]

Beersmith gives 4.6g/l for sugar to give 2 volumes with is in the middle of the range for a stout.

 

[DanST]

Assuming you've made the kit to ~23L I'd go with 80g dextrose total to batch prime a stout. I weigh it into a big mug and chuck on as much boiling water as it needs to dissolve. Stick it in your bottling bucket and rack the beer on top to mix.

 

[stigman]

Thanks for the replies chaps, just done a bit of googling and apparently one 5ml spoon= 4.5grams of sucrose and 3.4grams of dextrose/glucose. Now just haven to decide how much to batch prime my 23 litres with.

 

[LarryF]

I've always gone 1tsp per 500 or 600 ml bottle and found it fine.

 

[stigman]

Surely you don't want a fizzy stout or flat APA,

 

[RichardM]

5ml will be 5g. I would aim for around 4g per litre

5ml=5g for water. We are talking about dextrose here

 

[mickthetrick]

personally i like a stout lightly carbonated. 1/4 teaspoon measure is enough for me.

 

[DanST]

Just noticed you mentioned you haven't got any scales. Bearing in mind normal kitchen scales would do the trick for this?

Basically you've got 3 options without scales: stick 1/2 teaspoon in each bottle, measure out 20 teaspoons and dissolve in water to batch prime or get 2 identical mugs/bowls stick 80ml water in one and add dextrose to the other until they are equal by feel or you can bodge a scales some how to compare. Obviously the last method relies on you being able to measure 80ml accurately.

Personally I'd probably go with the 20 teaspoons. As it's a stout I'd probably go a bit below the average suggested figure. If you're not getting as much head as you'd like (giggity) you can just pour a bit more aggressively.

Edit: by suggested figure I mean from a priming calculator. If you Google it loads will come up. They suggest priming rates for different styles and adjust for what your priming with (dextrose, sucrose, malt extract etc).

 

[dad_of_jon]

5ml=5g for water. We are talking about dextrose here

because water is 1.000 on a hydrometer. wort is denser eg. my last beer was 1.050 ish so 5ml would weight a bit more than 5g. eg 5g x1.050

 

[stigman]

Think I will take your advise Dan 20 teaspoons its gona get. No problem getting enough head in our house mate giggity giggity!!!

 

[stigman]

Am I able to batch prime in my bottling bucket now then bottle tommorow? It's getting a bit late now, and I've polished of 4 bottles of my evil dog so getting a bit tired now. But still not finished sanitizing my bottles yet

 

[cheapbrew]

I would leave it til tomorrow, the yeast will turn some of the sugar to co2 overnight and might affect your bottles carbing up.

 

[stigman]

Will do em tommora then, bottles all done now and sealed off with tin foil. Ttime for bed soon.