When you dive into the world of baking, particularly when working with doughs like Biga, poolish, or even making pizza dough, you’ll often encounter the term W number. But what does it mean, and how does it impact your baking? At Crusters, we believe that understanding the W number of your flour can transform your approach to making pizzas, breads, and other dough-based recipes.
What Are W Numbers in Flour?
The W numbers flour measures the strength of flour. This metric indicates the flour’s ability to absorb water, form a strong gluten network, and retain gas during fermentation. The W number is determined through a test called the alveograph, which measures the dough’s elasticity and extensibility. Higher W values mean the flour is stronger and more suitable for recipes that require long fermentation times, while lower W values are ideal for lighter, quicker bakes like cakes or pastries.
- Low W Values (W 150-200): These flours are weak and best for cakes, biscuits, or short fermentation doughs. They produce soft doughs that don’t hold up well over long proofing periods.
- Medium W Values (W 200-260): These are more versatile, suitable for breads and everyday pizza recipes. They offer a balance of strength and softness, making them great for general-purpose baking.
- High W Values (W 260-320): These strong flours are perfect for doughs that require extended fermentation, such as Neapolitan pizza or certain types of rustic breads. Their ability to absorb more water helps create airy, well-structured doughs.
- Very High W Values (W 320+): Ideal for long fermentation times, such as 48 hours or more. These flours are often used for creating starters like Biga or poolish due to their ability to maintain structure over time.
The Role of W Numbers flour in Biga and Poolish Preparation
When preparing pre-ferments like Biga or poolish, the choice of flour’s W value is crucial. Here’s how the W number affects each:
- Biga: A stiff pre-ferment with low hydration (about 50-60%), Biga benefits from flours with high W values, typically around W 300-350. The stronger gluten network supports the longer fermentation time of 18-24 hours, helping the dough maintain its structure. High W flour allows the Biga to develop complex flavors, creating a dough that rises well and has a rich, deep flavor. At Crusters, we recommend using flours like Caputo Saccorosso for preparing a stable and flavorful Biga.
- Poolish: A more liquid pre-ferment with equal parts flour and water (100% hydration), poolish also thrives with strong flours but can use slightly lower W values, around W 250-300. The medium strength balances the needs of the poolish, providing enough structure while developing a unique aroma and texture. Poolish ferments for about 12-16 hours and is great for adding a subtle tanginess to doughs like baguettes or focaccia. A flour like Caputo Doppio Zero works well here, providing elasticity and a delicate texture.
W Number Flour and the Kneading Process
Understanding the W number is also key to perfecting your kneading technique. Kneading is all about developing gluten, which gives dough its elasticity and strength. A flour’s W number tells you how much gluten it can form, guiding you on how much kneading is required:
- Flours with lower W values will need less kneading because their gluten structure develops quickly but is not as strong. Over-kneading can make these doughs tough, so gentle handling is ideal.
- Higher W value flours need more kneading time. This extra effort helps to fully develop the gluten, allowing the dough to stretch and hold more gas during fermentation. This is particularly important when preparing doughs for pizza, as it results in a light, airy crust with well-defined bubbles.
For example, at Crusters, when preparing a long-fermented pizza dough using Caputo Nuvola flour (W 280/290), we ensure thorough kneading to build up the strength needed for a soft, airy crust that can expand beautifully in a hot oven. The kneading process becomes a critical step to achieve the perfect texture.
Choosing the Right W Number for Your Recipe
Selecting the W number flour based on its W number can dramatically improve your baking results. If you’re experimenting with long-fermented doughs like those used in Neapolitan pizzas, opt for high W flours to ensure the dough can withstand extended proofing times. For quicker bakes or cakes, a lower W flour will give you the softness and lightness you need.
At Crusters, we offer a range of flours suited for different baking needs, from Caputo Saccorosso for strong, long-fermentation doughs to Caputo Doppio Zero for versatile, everyday use. Check out our product range to find the perfect flour for your next baking project, and explore our articles on dough preparation for more insights.
Final Thoughts: Elevate Your Baking with the Right Flour
Understanding W numbers and how they interact with different doughs and kneading techniques is key to mastering the art of baking. Whether you’re preparing a slow-fermented Biga, a balanced poolish, or simply want to perfect your pizza crust, choosing the right flour makes all the difference. With the right knowledge and high-quality ingredients, you can achieve exceptional results every time.
