Question: are lemon and lime juice the same?
Answer: Lemon and Lime pH However, lemon juice generally registers between 2.00 and 2.60 on the pH scale, while lime juice registers between 2.00 and 2.35. This means lime juice may often be more acidic than lemon juice. This is on top of the fact that lemons, which have a slightly higher sugar content, are sweeter.