Wedge Wire False Bottom Vs. Perforated False Bottom: Which is Ideal for Efficient Beer Brewing? For efficient beer brewing, especially in microbrewery and commercial systems, a wedge wire false bottom is generally superior to a perforated false bottom. It offers higher open area (typically 20–35%), more uniform slot control (0.5–1.5 https://www.johnsonwedgewire.com/news/wedge-wire-false-bottom-vs-perforated-false-bottom.html