Help converting 5 gallon to 1 gallon all grain

[arnobg]

I have a 5 gallon recipe I am looking to convert to a 1 gallon recipe so that I can try out my first all grain without wasting a lot of product if not done well. I also only have room in the chamber for a 1 gallon carboy right now so that is another reason.

Here it is, an Irish Red Ale:

- 7.5 lbs. Rahr 2-Row Pale
- 0.75 lbs. Belgian Caramel Pils
- 0.25 lbs. Briess Special Roast
- 0.125 lbs. Belgian Biscuit malt
- 0.125 lbs. English Chocolate Malt

- 0.75 oz. Willamette (60 min)
- 0.75 oz. US Goldings (30 min)

Thanks for any help and/or suggestions.

 

[Aristotelian]

I have a 5 gallon recipe I am looking to convert to a 1 gallon recipe so that I can try out my first all grain without wasting a lot of product if not done well. I also only have room in the chamber for a 1 gallon carboy right now so that is another reason.

Here it is, an Irish Red Ale:

- 7.5 lbs. Rahr 2-Row Pale
- 0.75 lbs. Belgian Caramel Pils
- 0.25 lbs. Briess Special Roast
- 0.125 lbs. Belgian Biscuit malt
- 0.125 lbs. English Chocolate Malt

- 0.75 oz. Willamette (60 min)
- 0.75 oz. US Goldings (30 min)

Thanks for any help and/or suggestions.

Very simple. Just divide everything by five to get your ingredients.

The only thing that changes is the water ratio. In my experience, I aim for 1.5 gallons pre-boil, and end up at 1 gallon after a 1 hour boil.

 

[arnobg]

Very simple. Just divide everything by five to get your ingredients.

The only thing that changes is the water ratio. In my experience, I aim for 1.5 gallons pre-boil, and end up at 1 gallon after a 1 hour boil.

Yeah i know my boil off rate is just shy of 3 quarts for a one gallon batch.

I was under the impression that it wasn't that simple as far as hop additions (dividing by 5) but then again I don't know that's why I'm here for help, so thats for the response.

 

[JosephN]

Do you use any kind of brewing software? BrewersFriend.com is free and you can hold up to 5 recipes and alter them, for free. If you want to hold more recipes then you pay like $10 for a year. Once you go in there and enter in all your info, you have to save it and then you can do what they call "scale" which will allow you to change the final volume outcome and when you do that it will keep the IBU, SRM, OG &FG all the same. It will tell you how much hops to add.

 

[pricelessbrewing]

I have a 5 gallon recipe I am looking to convert to a 1 gallon recipe so that I can try out my first all grain without wasting a lot of product if not done well. I also only have room in the chamber for a 1 gallon carboy right now so that is another reason.

Here it is, an Irish Red Ale:

- 7.5 lbs. Rahr 2-Row Pale
- 0.75 lbs. Belgian Caramel Pils
- 0.25 lbs. Briess Special Roast
- 0.125 lbs. Belgian Biscuit malt
- 0.125 lbs. English Chocolate Malt

- 0.75 oz. Willamette (60 min)
- 0.75 oz. US Goldings (30 min)

Thanks for any help and/or suggestions.

Is that 5 gallons into the fermenter, or 5 gallons out of fermenter? Need to know in order to scale properly as it would affect the OG, and IBUs.

I usually divide by the ratio of batch sizes. (for me I aim for 5.5 for 5gal brews, and 1.1 for 1 gallon brews). Then I plug the info into my mash calculator to get the water volumes and temps I need.

 

[timdillon36]

I was never good at division so u might want to x it by .2. ? And whatever u get for hops round that up a bit and will be close.

 

[pdog44450]

I have a 5 gallon recipe I am looking to convert to a 1 gallon recipe so that I can try out my first all grain without wasting a lot of product if not done well. I also only have room in the chamber for a 1 gallon carboy right now so that is another reason.

Here it is, an Irish Red Ale:

- 7.5 lbs. Rahr 2-Row Pale
- 0.75 lbs. Belgian Caramel Pils
- 0.25 lbs. Briess Special Roast
- 0.125 lbs. Belgian Biscuit malt
- 0.125 lbs. English Chocolate Malt

- 0.75 oz. Willamette (60 min)
- 0.75 oz. US Goldings (30 min)

Thanks for any help and/or suggestions.

An easy route for this question would be to download the BeerSmith trial. That way you can adjust for efficiency if you need to. If you are around 75% efficiency then you can just multiply everything by 0.2. Hops and grains are scalable.

 

[arnobg]

I didn't realize Brewersfriend had a tool for this which I now see, I do have subscription. Thanks for the help.

 

[JosephN]

I didn't realize Brewersfriend had a tool for this which I now see, I do have subscription. Thanks for the help.

[emoji106]🏻[emoji106]🏻

 

[arnobg]

I ended up with this:

Rahr 2-Row
Breiss 2-Row Carapils
Breiss Special Roast
Chateua Biscuit
Crisp Pale Chocolate

Is this going to be close enough, I realsize there are some slight differences but it is what my LHBS had...

 

[kh54s10]

Is that 5 gallons into the fermenter, or 5 gallons out of fermenter? Need to know in order to scale properly as it would affect the OG, and IBUs.

I usually divide by the ratio of batch sizes. (for me I aim for 5.5 for 5gal brews, and 1.1 for 1 gallon brews). Then I plug the info into my mash calculator to get the water volumes and temps I need.

How much difference is this in your system?
For me it is less than 12 ounces. Far to small to make any differences in the measurement of your ingredients, unless you weigh extremely accurately!!

 

[pricelessbrewing]

For me, I need to hit about 5.4G in order to get 5 gallons out of the fermenter. If you're claiming a fermenter trub loss of 12 oz for 5 gallons, then you're the first person I've heard of.

If you mean 12 Oz of grain then that's fairly reasonable and yes I weigh my ingredients accurately, I have two scales one for 1g precision up to 11 lb and one for .1g precision up to 2Lb. I like to be as consistent as possible as otherwise it's difficult to know where to look for changes to improve.