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EBC

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Posts: 7
Reply with quote  #1 
I have ProMash setup in the metric system.

Error: The L Water/KG Grain Ratio value changes for no apparent reason.

How to reproduce:

When working on a brewing session and having both the 'Edit Ingredients' and the 'Mash Schedule' windows open:

1. change the L Water/KG Grain Ratio value on the Mash Schedule window
2. on the Edit Ingredients window, change either the amount of malts or the efficiency percentage
3. Now check the L Water/KG Grain Ratio, it has about doubled, resulting in a way too large After Cooling (4%) value on the Water Needed window...

When clicking Ok on the Mash Schedule window after changing a value as in 1. above, the error does not appear.

JDonovan

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Posts: 531
Reply with quote  #2 
2. on the Edit Ingredients window, change either the amount of malts or the efficiency percentage

It's interactive. By changing the amount of grain, you in effect change the ratio of grain to water (as you can, as opposed to entering a ratio, enter the actual water amount used). In this case, we made the decision to change the ratio and leave the amount of water untouched. So, but changing the amount of grain in the mash, and not changing the water value, you are in essence changing the water/grain ratio. If you put the ratio back to the prior number, then the water amount will be different as you have modified the grain amount and kept the ratio the same.

3. Now check the L Water/KG Grain Ratio, it has about doubled, resulting in a way too large After Cooling (4%) value on the Water Needed window...

The amount will depend on how much you changed the grain bill in the recipe. If you say halved it, then yep the ratio will increase 2 fold....Would need to know that information (how much the grain bill changed) before I could determine if the new number was correct or not.

- Jeff


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EBC

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Posts: 7
Reply with quote  #3 
I understand it is interactive, but when I change the grain amount with only one click on the up/down buttons, which amounts to 250 grams in my setup, the amount of water is doubled.
The After Cooling (4%) value increases from 50 liters to 100 liters with an increase of only 250 grams of malt.

It does not, when I click the ok button first...
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