Fruit mash: boiling vs freezing ?

[dragongreen]

Hello,

I would like to know the difference between boiling and freezing the fruit to do a fruit mash. (I will be using pears)

Seems to me boiling has several advantages over freezing: quicker, easier and sterilizes things.

But is there a difference in the taste ?

Also I'd like to add 2kg of sugar, for a 20L wash, is that the ball park amount ?

Thanks