Double or triple mash stouts?

[Chris-18]

Hey eveyone

Over the last few months I have had a few different imperial stouts, some from Hoppin' Frog and others, and most of them are DORIS or TORIS, so Double or Triple Oatmean Russian Imperial Stouts.

Now I have been wondering what a triple mash is. It's not a triple decoction mash or anything like that from what I can read.

So does anyone here know what the technique here is?
Do you make a regular mash, run off the wort and pour the fresh wort onto a "dry" grain bed, and start a new mash? I my head that would result in horrible efficiency. Or is it a 3 different mashes poured together in the boil?

Hope someone knows a little about this

 

[triethylborane]

Hey eveyone

So does anyone here know what the technique here is?
Do you make a regular mash, run off the wort and pour the fresh wort onto a "dry" grain bed, and start a new mash? I my head that would result in horrible efficiency. Or is it a 3 different mashes poured together in the boil?

It is also called reiterated mashing. It is not decoction mashing, instead it is a way to make big abv beers with limited/smaller volume equipment.

Here are a few resources on it:


https://byo.com/bock/item/1317-reiterated-mashing-multiple-mashes-for-massive-brews

[ame]https://www.youtube.com/watch?v=FQXOXejO_w8[/ame] (grainfather reiterated mash imperial stout)