So it does; that must be Harry’s source (^_^). It would be consistent that 98% freezes at 3° and 100% freezes at 10°, but HSW also says that you can’t get more than 98% (presumably because it draws water from the air, it doesn’t say).
I agree, this doesn’t really affect anything. If Harry can’t make a concentration that freezes at 10° but can make one that freezes at 3°, then that’s what he’ll use. (I only looked into this because it was such a surprising claim.)
So it does; that must be Harry’s source (^_^). It would be consistent that 98% freezes at 3° and 100% freezes at 10°, but HSW also says that you can’t get more than 98% (presumably because it draws water from the air, it doesn’t say).
I agree, this doesn’t really affect anything. If Harry can’t make a concentration that freezes at 10° but can make one that freezes at 3°, then that’s what he’ll use. (I only looked into this because it was such a surprising claim.)
And, he can easily get to 4 degrees on fairly large masses using the cooling spell he used on Hermionie’s corpse.
Cooling spell, right, no need for ice!