The two enzymes work best when applied in combination which is why we usually mash in the middle temperature range around 153F/67C. A low step temperature (146-150F/63-66 C) emphasizing beta amylase will therefore result in a more complete conversion to simple sugars, but will take longer to complete.
What temperature should my mash be?
In order to activate the enzymes that convert grain into simple sugar, the mash temperature must be between 145°F and 158°F. For most styles of beer, a mash temperature of 150-154°F is used, and will produce a wort that can be easily fermented by the yeast while retaining a medium body.
How important is mash temp?
In essence, a lower mash temp purportedly produces a beer with a lower FG thats dry with a thinner body and crisp mouthfeel, while a beer mashed warmer is said to finish with a higher SG and be sweeter with a fuller body.
What happens if mash gets too cold?
More sugar will be left over after fermentation resulting in a more full-bodied beer. This leaves behind a thinner, drier beer. Mash too much lower than that and youll end up with poor starch conversion and a really thin, “watery” beer. Youll also start breaking down precious proteins needed for head retention.
What happens if you mash too hot?
If you are mashing well over 70 C then you are degrading those enzymes almost instantly to where they arent going to do any work either. This also isnt great for the yeast. In both cases the yeast will be able o ferment some of the wort, but most of the sugars are way too complex for the yeast to break down.
How do I increase mash temperature?
Add cold water. Just as you would add boiling water to raise the mash temp, you can add cold water to the mash to cool it down. The tools mentioned above (Beersmith, Brewtoad, etc.) will also tell you how much cold water to add if your mash temp is too high.
What happens if mash gets too hot?
First, know that the normal mashing temperature range is 145 – 158F (63 – 70C). In general, mashing at the higher end of that range produces longer sugars which are harder for the yeast to eat. On the other hand, if you mash too high (168-170F), youll run the risk of permanently killing the conversion process.