MSU Equipment: Industrial Equipment Co. 16 position bench top mash bath
The Mash Bath is basically an automated water bath that allows precise temperature control and continuous mixing of 16 samples
Ground malt is mixed at a defined ratio with water and heated over a two hour process with mixing (called a Congress Mash)
- 30 minutes held at 45C
- 25 minutes of step increases, 1C/minute, bringing the bath to 70C
- 1 hour at 70C
The enzymes important to converting malt starches into sugars each have ideal conditions for their action - this step mash allows a window for each to act and results in a maximum or ideal extract for each sample. The Congress Mash is the standard used for Malt Quality Analysis.
Mashing is essentially a continuation of the processes which are started during malting
- Malting initiates germination (breakdown of cell walls and protein matrix), which is then paused by kilning
- Mashing re-hydrates the malt and allows enzymes to breakdown starches into sugars - which are later converted to alcohol by yeast.