What is the purpose of soaking sliced potatoes in cold water before frying them?

Question

What is the purpose of soaking sliced potatoes in cold water before frying? Learn how this step removes excess starch for a crispier result.

Answer 1

Soaking sliced potatoes in cold water before frying removes excess starch, resulting in crispier fries and preventing them from sticking together.

Detailed Explanation:

Soaking potatoes in cold water is a crucial step in achieving perfectly crispy fries. Potatoes naturally contain a high amount of starch. When heated, this starch gelatinizes, creating a sticky surface. By soaking the sliced potatoes, you draw out this excess surface starch. This process has several benefits:

1. Crispier Texture: Removing the surface starch allows the potatoes to crisp up more effectively during frying. The exterior becomes golden brown and crunchy, while the interior remains fluffy.

2. Prevents Sticking: The reduced starch content minimizes the likelihood of the potatoes sticking together in the fryer, ensuring each fry cooks evenly and separately.

3. Improved Color: Soaking can also help prevent excessive browning during frying, leading to a more appealing golden color.

The ideal soaking time is typically between 30 minutes to a few hours. After soaking, it's essential to thoroughly dry the potatoes before frying to prevent splattering and ensure proper crisping.

Pro Tip:

For even crispier fries, consider a double-fry method. Fry the potatoes at a lower temperature (around 325°F or 160°C) first to cook them through, then fry them again at a higher temperature (around 375°F or 190°C) to achieve that perfect golden-brown crispiness.