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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Partial Mash and Hot Side Aeration (HSA)
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Old 08-21-2011, 04:03 PM   #1
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Default Partial Mash and Hot Side Aeration (HSA)

I just did a partial mash brew and I definitlely subscribe to RDWHAHB. I use a 2 gallon igloo liquid cooler for mashing with BIAB.

Last week I brewed NB's Rye PA (Partial Mash). After mashing, instead of slowly pouring the wort into the boil kettle with a hose, I simply lifted the bag, picked up the cooler, and dumped the 150 degee wort into the pot so it definitley aerated a little. Same with the sparge water.

I've read that aerating the hot wort pre-boil can cause oxidation long term. I've searched the forum and also read John Palmer's info on his below:


Has anyone experienced oxidation or off flavors in their home brews due to HSA or is this mostly an issue for commercial brewers?

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Old 08-21-2011, 04:18 PM   #2
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HSA discussion and "RDWHAHB" don't belong in the same post LOL............

When doing all grain batches I collected wort in a 5 gallon bucket and then dumped it into my brew pot. Did this for about year (20+ batches). I never noticed any oxidation or other negative effects.

I stopped the bucket dumping method once I reconfigured my setup. Not because there was anything wrong with it just bc it was an unnecessary step.

So no, I don't subscribe to the whole HSA theory for homebrewers.

Up next: Kolsch, Alpha Squirrel, Tripel rebrew, Witbier

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