The goal of this project was to help Wachusett Brewing Company increase beer clarity. Phase one involved the optimization of a six roller mill to produce a grist with a desirable husk volume above 400cc / 100g. Phase two entailed correlating husk volume to lauter tun runoff clarity. A husk volume of 455cc / 100g was achieved with mill settings of 1.65 mm, 0.9 mm, and 0.6 mm. Additionally, the results from phase one indicated that the second roller gap has the greatest impact on husk volume. In phase two, the optimized mill settings of 1.65mm, 0.9mm, and 0.8mm was found to decrease the quantity of haze forming compounds by 43%. As a tradeoff, lautering time increased by 26 minutes.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Quigley, Jennifer Rose
• Peguero, Christian
• Daddis, Annemarie Nicole
• Hanna, Thomas

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-032217-173056

Advisor

• Kmiotek, Stephen J.

Year

• 2017

Sponsor

• Wachusett Brewing Company

Date created

• 2017-03-22

Resource type

• Major Qualifying Project

Major

• Chemical Engineering

Rights statement

• In Copyright