A wedge wire false bottom is a precision-engineered stainless steel screen made from triangular (V-shaped) wires welded onto support bars. These wires create continuous slot openings that allow wort to pass through while retaining grain solids. This design ensures a consistent flow, reduced clogging, and high structural integrity under pressure.

Typically manufactured using 304 or 316 stainless steel, wedge wire screens offer corrosion resistance, food safety compliance, and a long service life-key attributes for modern brewing operations.

How Wedge Wire False Bottom Works in Mash Tuns and Lauter Tuns
✔ In Mash Tuns: The false bottom forms the foundation for the grain bed, facilitating the enzymatic conversion of starches into fermentable sugars. The slot openings in the mash tun false bottom help extract clear wort while supporting the spent grain.
✔ In Lauter Tuns: The wedge wire lauter tun screen promotes gentle separation of wort from the grain husks during lautering. Its design prevents channeling, ensures even flow, and minimizes turbidity, key to producing bright, flavorful wort.

Top Benefits of Using Wedge Wire Screens in Breweries
1. Superior Filtration Performance
The continuous slot structure ensures consistent wort clarity and high flow rates without clogging. Slot sizes can be customized (typically 0.5–1.0 mm) to suit specific grain bills.
2. Durability Under Heavy Load
Wedge wire screens are TIG welded for strength and can support the weight of wet grain without deformation. This makes them ideal for high-capacity lauter tuns.
3. Sanitary and Easy to Clean
Made from food-grade stainless steel, wedge wire screens meet hygiene standards and resist corrosion. The smooth surface reduces residue buildup and allows for easy CIP (Clean-In-Place) cleaning.
4. Custom Fit for Any Tank
Whether flat, domed, or segmented, wedge wire false bottoms can be fabricated to exact specifications. Suppliers offer OEM services to match tank drawings or retrofit existing vessels.
5. Cost-Effective Over Time
Although more expensive upfront than perforated plates, wedge wire screens last significantly longer and perform better, resulting in reduced downtime and lower replacement costs.

Installing a wedge wire false bottom in your mash tun or lauter tun isn't just a hardware upgrade; it's a strategic investment in brewing consistency, operational efficiency, and product quality.
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Article Source: wedgewire-filter.com