Frjen
Senior Member
- Joined
- Mar 31, 2013
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I don't know what the purpose of the lemon is, the recipe doesn't say.
4 lb potato, sliced
1 lemon, sliced,
1/4 oz hops
1 gallon water
3 1/2 lb sugar
This is what the supplier also calls it, Acidex, Neoanticid and Calciumcarbonat, E170.Can you give us the chemical formula for the substance you are calling "double salt." I think there may be something lost in translation from Danish to English.
Calcium carbonate is ground up limestone (chalk). It is fairly slow acting, as week(s) to dissolve.This is what the supplier also calls it, Acidex, Neoanticid and Calciumcarbonat, E170.
I haven’t added it yet, not sure if I should.Calcium carbonate is ground up limestone. It is fairly slow acting, as week(s) to dissolve.
chemical CaCO3
low pH will give better shelf life, a wine at pH 5.4 is ok about as long as a beer,,, a few monthsI did not measure pH . . .Will the sour taste reduce in ageing in bottles ?
I haven’t added it yet, not sure if I should.
I did’nt use that recipe this timeThis is probably not a useful answer since my guess is that your pH is a function of acid you added NOT minerals from potato. pH changes are complex due to multiple minerals acting in concert. The only way to know what will happen is to do a titration of your potato wine. This goes back to the questions above about what was in the recipe.
The potato I looked at has a pH of 5.4 (Titratable acidity 0.39% as tartaric acid) therefore to get a lower pH you had to add acid, ,,,,, again how much? To be a long shelf life wine the pH should be between 3.2 and 3.5. Low pH makes the metabisulphite (anti oxidant) chemistry work better. Too low on pH and the fermentation will not happen.
However if pH is due to potato the graphic shows the rate of change per kilogram of potato with the addition of an alkali. Potassium bicarbonate is used to shift pH in wines therefore I am showing the pH shift as K2CO3 is added to potato solids. The pH scale is logarithmic therefore the change will not be a straight line.
View attachment 70373
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