Recepie scaling by OG

[raysv]

Hi,
I would like to see a feature so you can scale a recepie just by adjust what OG you want to hit and it would adjust the ingridients accordingly.

It would be easier to scale recpies then build for another system that the one in use.

 

[GFHomebrew]

Now that would be one complicated algorithm! Adjust your base malt?

 

[raysv]

I have no idea how complicated it would be, you have it in BS, can just slide your desired OG up and down and it scales everything correct. Find it very handy. By just adjusting the basemalt it dosn't become the same beer i would guess?

 

[GFHomebrew]

So you want to change all the percentages of all your Inputted malts to suit your desired OG outcome? Yep sounds like a cool feature. You would have to have a set ratio pre entered so the scale would work right?

Ratio of base to crystal to wheat or whatever.

 

[Brewer #49964]

I don't think this would be complicated, the recipe includes an OG for the beer and a quantity for each fermentable, so just scale all linearly.

Possible algorithm pseudo code:

scaling_factor = target_OG / current_OG
for each fermentable in recipe {
quantity = quantity * scaling_factor
}

A related feature which I would like very much would be an option to enter fermentables by percentage, rather than weight.