The success of our Meura mash filter can be summed up in one word: efficiency. The mash filter improves over the traditional brewing system by making more efficient use of the grain that is the basis of modern-day beer. A normal brew system will extract 70%-80% of the starches from the grain. The mash filter will extract 98%, thereby needing on average 15% less grain to make the same amount of beer!
The mash filter makes this huge improvement possible because it allows a brewery to grind the grain down to a course flour compared to simply cracking it into a few pieces, as has been standard for centuries. Normally, brewing with flour would result in a 2,000lb ball of dough. Instead, we add enough water to create a thin slurry and to prevent the flour from clumping. The resulting 10 fold increase in surface area contact between the hot water and grain allows the water near complete access to extract all but a tiny bit of the available barley goodness. We then use the mash filter to separate the grain from the wort, AKA, the life-giving, grain-flavored liquid that will soon become beer.
Here's a step-by-step recap of our daily labor of love: