Target pH values.
Posted: 21 July 2009 10:33 PM   [ Ignore ]
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OK, I’ve been reading thru a ton of older posts. You guys talk about pH values a lot, but I have no point of reference. All of my recipes and books talk about time and temperature. I know that temp x time = a somewhat predictable pH value. Is there a reference source anywhere that lists target pH values for the various cheeses at different stages in the process? For example, how do I figure out the “correct” pH after aging my cultured milk before adding renet when I am doing a Cheddar?

To complicate this a bit more, I am using fresh (raw) milk from Jersey cows with a higher fat content. I have a pH meter and my milk starts at 6.6-6.7. I have read vague references suggesting that culture, renet and such need to be adjusted for fresh milk. I suspect that this is due to the fact that raw milk already contains a lactic bacterium that jump starts the whole acidification process. It would make sence then that fresh milk with culture added would not have to set as long as one using store pasteurized milk. I have no way to adjust timing without knowing what the target pH values are.

Any references out there? Suggested readings?

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Posted: 22 July 2009 01:06 PM   [ Ignore ]   [ # 1 ]
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each cheese has for each step its pH level

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Posted: 22 July 2009 08:46 PM   [ Ignore ]   [ # 2 ]
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Nabil - Where can I find what those pH levels are supposed to be?

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Posted: 22 July 2009 08:49 PM   [ Ignore ]   [ # 3 ]
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search this forum, i have posted many

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Posted: 22 July 2009 10:02 PM   [ Ignore ]   [ # 4 ]
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Nabil, yes I have read many of your posts regarding pH. THATs exactly what has made me want to learn more about the technical details. How do you know what the proper pH values are supposed to be? Have you learned by trial and error? Are there technical books that you recommend? Thanks for sharing your knowledge with the group.

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Posted: 23 July 2009 05:01 PM   [ Ignore ]   [ # 5 ]
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First I hope u have a PH meter, in the recipe section I believe their are values people have posted as well as the posts in the general forum.

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