No worries at all! Simply place all the peels in a bowl and cover completely with water until they are fully submerged. Soaking the potato peels in this way prevents them from turning pink or purple over time due to oxidation. It's safe to soak them for up to 2 days. When you're ready to use them, drain off the water and pat dry to remove all of the excess water. Keep in mind that potato skins that are too moist won't crisp up well and will only steam instead.