No Squeeze Sparging

[doug293cz]

My point, poorly made, was that a 1 point difference on a 1.058 beer is likely just an effect of the different sparge amounts, or natural variation in batches.

If this kind of experiment is reasonably easy for you to run, I'd love to see if the result holds up over repeats. I'd bet it pretty much would.

My conclusion was that from the data obtained, it is not possible to say there is any difference in efficiency of the two processes tested. The differences are not large enough to assign them statistical significance. Maybe my wording was a little obtuse. It is also not possible to say there is no difference. The only thing I can say with confidence is that any differences are likely to be small. Also, no conclusions can be drawn about process variations that were not tested.

The experiments are easy to run. I just have to collect a little more data than I usually do during a normal brew day. And, I may need to modify the equipment in minor ways. I don't plan to do any major equipment mods as part of this series of experiments. One limitation is that I don't want to brew the same beer all the time. But, I did select this recipe to use for a series of single hop brews for me to learn about the taste and aroma of different hops. So, I will be brewing it a lot, interspersed with some other styles/recipes.

The next variations I want to run are:

1. Full volume (no sparge), long drain with basket.
2. Full volume (no sparge), long drain without basket.

I will do these before I do any replicates of previous cells. And, I might find other new variations I want to do before any replicates.

Brew on

 

[Randy64]

Just finished reading the thread. Thanks for sharing your work doug293cz.

 

[DurtyChemist]

I definitely consider that a no squeeze approach. Do you also do a sparge while it sits over the bucket?

I don't know how I missed this but NO I don't sparge. I can get my recipe I just brewed and hit 70% efficiency with if you want to compare. I brew in a keggle and usually mash with around 9-10 gallons of water.