Milk is basic at 3 pH, and coffe is an an acid, so i don't think it would affect it at all.
yes
Black coffee is acidic with a pH of 5 (Freeman, 2005) whereas coffee with cream/milk and sugar has a higher pH (basic) due to milk having the pH of 6-7.Coffee is a base
Since the pH scale ranges from 0 to 14, a change in one pH unit signifies a tenfold modification in activity. In this case, coffee has a pH of 5, meaning that when compared to the pH of 10 in milk of magnesia, coffee is 100,000 (10 x 10 x 10 x 10 x 10) times more acidic than milk of magnesia.
Coffee is acidic. Milk of magnesia is basic. A neutral pH is 7. pH is logarithmic, so a pH of 5 is 10 times more acid than a pH of 6. since coffee is 2 less than 7 and milk of magnesia is 3 more than 7 it takes 1 part milk of magnesia to 10 parts coffee to neutralize each other.
Black coffee is acidic. It has a pH of 5 but with milk it is more acidic.
as the bcteria chaanges the ph to an acid thus turning the milk sour thereby changing the ph value.
Temperature affects the pH balance of milk when heated milk becomes sour turning it more acidic with a pH balance of 7.52 where as curdled milk is more of a base because they make cottage cheese out of it. It has a base of 4.7254
Bacteria in milk causes milk to sour by changing lactose to lactic acid. This causes the pH to drop and once the pH drops low enough, the proteins in the milk will curdle.
yes. coffee has a ph of 5, which makes it slightly more acidic than milk, and slightly less acidic than tomato juice.
I don't have a definitive answer, but can estimate a range based on some known quantities: Full Milk is around PH 6.5, brewed coffee is around PH 5.5. Espresso is a more concentrated form of coffee, but it is then diluted by the milk. Also, different coffees have different PH's. Based on the above my guess is that a Chai Latte (basically a mixture of milk and concentrated coffee and non-acidic spices) is somewhere in the range PH 5.5-6.0. In terms of tooth erosion my guess is that this is a pretty safe drink, especially since milk has calcium in the mixture. If anyone has measured this or knows more, please comment. -Chai is a Tea, not a coffee, however a Starbucks Chai Latte uses Chai Concentrate which has Black Pepper in it. It would still not have the same amount of coffee, which is closer to 5.
pH level of coffee is 6.9
The pH of milk is 6.7