If keeping potatoes in water for more than an hour, refrigerate. However, don’t soak them any longer than overnight—after that, the potatoes start to lose their structure and flavor.
How long should you Soak potatoes in water?
Give them a cold water bath: Once your potatoes are chopped, toss them into a large bowl. Then cover the potatoes completely with cold water and let them soak for at least 30 minutes (or up to overnight). This will help to rinse off the excess starch and help the potatoes crisp up beautifully in the oven.
Should you presoak potatoes?
Soaking Potatoes
Soaking the potatoes in cold water also prevents the potatoes from browning too fast when cooking. You can omit this step if pressed for time, but otherwise, I strongly recommend doing this. Reheating the oven baked potatoes in the air fryer is a great way to save time and re-crisp the potatoes.