Beneficial enzymes in composted beer mash?

[Vandenberg]

I have heard "Their Secret weapon" type whispers of the benefits that some growers recieve by incorporating a spent beer mash into their compost piles and then later into their aerated compost tea recipes.

I understand that the mash is just the malted (sprouted and then roasted) barley which has been steeped in water to extract the sugars; the proteins are left in the grain so it's a good source of nitrogen - the green stuff.
Does anyone have any gardening experience with this beer brewing by-product in a hot composting situation?
Any noticeable benefit when eventually incorporated into an actively aerated compost tea?

Malted Barley as a Chitanease/ Chitan/ Enzyme source (Sprouted Seeds)

Chitin and chitosan induces a systemic defense response that can promote an increase in chemicals naturally produced by the plant when pests and pathogens are present. Use of this incredible compound puts plants “on guard” and ready to tackle any impending threat. Because the plant already...

www.icmag.com

Vandenberg

 

[Creeperpark]

Is alcohol OK in compost?
You may be familiar with composting food scraps, including the materials that are left over from making alcohol: the pressed grape skins and seeds from making wine; or the cooked spent grains that are the byproduct of making spirits and beer. But, yes, you can also compost wine, beer, and spirits.

Drunken compost.!
To make a drunken compost, mix together equal parts beer or wine, manure, straw, leaves, and kitchen scraps. Add ingredients to a bin or pile, using enough water to moisten everything. Stir or turn the mixture every few days. Google

Warning the alcohol compost may attract staggering bums.

 

[chilliwilli]

I live close to a brewery and the stored used malt/draff stinks. Imo a compost pile would stink too and would need alot of aeration material and turning to not turn bad. Maybe make bokashi first because the consistency of the draff is good for that. Just mix it with molasses, lactic acid bacteria or a bokashi mix and fill a bucket with a lid and ferment anaerobic. It still will stink but imo turn faster into compost when mixed into a pile.

But i normally use malt in my soilmix. Together with krill or shrimp meal i should have a good amount of chitin without much bad smell.

 

[exploziv]

I think it can be used as long as it's not a big part of the mix ( I am thinking it even increases chances of a fire in your pile if badly managed ).
Best just to water it a bit and let it to rot in the sun in small piles before using. That way it won't hurt your worm population either, if you have a worm compost bin/pile.
OFC in a comercial setting they would just use the stuff in the hot pile and aerate as needed to mitigate the fire risk. Alcohool is something that is also created naturally by decomposition in a rotting compost pile.