What is the accurate pH level of an <span title="orange,grapefruit,tangerine,">orange,grapefruit,tangeri...</span> and lime?

Question

Or can anyone tell me of a website where I can find this and it is accurate. Thank you

Answer 1

Here you find them all:

http://www.cfsan.fda.gov/~comm/lacf-phs....

The pH-value of fruits varies with degree of ripeness, variety, weather while maturing etc. That`s the reason why you can`t find exact values in a list, they always give you a range.

Answer 2

If you go to a horticulture shop you can buy a pH testing kit (usually very cheap and easy to use). Then go to a fruiterer and buy an orange, grapefruit, tangerine and lime (who knows, they may even have other citrus like a lemon so you could really impress your teacher).