All Grain: Splitting Mash and Boil?

[Maynerd]

When brewing all grain can you split the process into multiple days? Example, Mash one day and boil the following day. If so could this affect the final product?

[backyard brewer]

It's possible, but there is also a good chance the mash could sour. If you can runoff and then refrigerate the pre-boil that would be best.

[oc eric]

Refrigerated wort is susciptable to bacterial infection. I have brewed and ppitched yeast the next day and the beer came out fine, but you are taking your chances...

[BrewMasterBrad]

I have heard many new all grain brewers ask this question. The all grain brew day does take a big time commitment. I would echo what Derrin and Eric said about souring the wort if you wait too long to boil it. In order to save time on my brew days, I measure out everything the night before I brew (water, grain, hops). When I get up in the morning, it's flame on. Cleaning as you go can save time too.

[DrDually]

Refrigerated wort is susciptable to bacterial infection. I have brewed and ppitched yeast the next day and the beer came out fine, but you are taking your chances...

+1

[Maynerd]

Thanks for the feedback gents. I won't take the chances and will hammer it out early Saturday morning. In an ideal world I would never consider splitting the process, but my weekends are usually busier than my work week.

Brad, thanks for that tip. I usually have everything measured out and ready to go, but have never pre-measured the water. Genius idea, totally will do that.