Peaches are non-climateric, which means they do not get any sweeter after picking. They do soften & become more juicy as they age after picking though. So sweetness is 1 thing & "soft & juicy" is another.miningminer wrote: ↑ I don't understand what you are saying actually. A ripe peach to me is one that is sweet and juicy. A soft but not sweet peach is not ripe to me. I can soften a hard peach in a few seconds against my countertop.
Ideally you would pick them ripe off the tree for maximum sweetness, but all supermarket peaches are picked hard. They can still be sweet, though. I find the imported US ones typically are & the Ontario 1s are not. They are peachy but not sugary.