Sometimes fresh peaches aren't completely ripe when purchased. So plan to purchase them a few days before you actually need to use them, and leave them sitting out to ripen.
I prefer to remove the skins from the peaches. To do this:
- Use a sharp paring knife to make an "X" at the base of each peach.
- Drop them into boiling water for about 30 seconds.
- Quickly remove them and drop into ice water for 1-2 minutes.
- Once cool enough to handle, slip off the skins.
Many recipes recommend adding the sliced fruit to the pitcher and chilling overnight so that the fruit is infused with the flavors. However I find that the strawberries and peaches can lose too much of their texture, and also change the consistency of the Sangria. For this Sangria I prefer adding the fruit within an hour before serving.