Boil the mash with hops and dilute with cold bottle mineral water

[eRicphtgr]

Guys, I've a lazy idea and not sure this works or will create any side effect? Hope anyone can share their experience and thought.

What if I mash 5kg (11lb) of grains with 12L (3.2gal) of water. I will roughly collect 9L (2.4gal) of wort. I boil this wort straight away and add hops. The same process we did all the while, just different volume.

Afterward, transfer the 7L (1.8gal) hot wort into fermentation bucket, pour in the cold bottle mineral water to make 20L (5.3gal). That would roughly bring the temperature down to 37C (99F). Sprinkle yeast when wort temperature get down to 20C (68F).

This above procedures kind a save some time for me.

 

[Qhrumphf]

You're talking about no-sparge brewing.

Lots of folks do it, but usually using a thin mash such that they were still boiling the whole volume. They don't usually top off after.

Their way is less efficient than sparging. Topping off will exacerbate that efficiency loss even more (lower starting gravity).

Years ago I did it your way due to equipment limitations- didn't have a kettle big enough for a full boil, so i would max out my kettle then top off. But that was equipment, not to save time.

No reason you can't do it. But your efficiency will be poor- you'll need to spend more on grain to hit the same OG.

 

[eRicphtgr]

You're talking about no-sparge brewing.

Lots of folks do it, but usually using a thin mash such that they were still boiling the whole volume. They don't usually top off after.

Their way is less efficient than sparging. Topping off will exacerbate that efficiency loss even more (lower starting gravity).

Years ago I did it your way due to equipment limitations- didn't have a kettle big enough for a full boil, so i would max out my kettle then top off. But that was equipment, not to save time.

No reason you can't do it. But your efficiency will be poor- you'll need to spend more on grain to hit the same OG.

Thanks for sharing, yes if i do sparging the volume gonna increase. If I do it this way it is going to save me like 2 to 3 hours i believe. Anyway I just wanna make sure it won't hurt the wort by doing this way.

 

[Miraculix]

This works, did this myself quite often for similar reasons.

Only thing you have to take into account is higher boil sg and therefore lower hop utilisation.

 

[eRicphtgr]

This works, did this myself quite often for similar reasons.

Only thing you have to take into account is higher boil sg and therefore lower hop utilisation.

thanks for sharing. Yes, I will need to calculate the final sg and calculate the final IBU accordingly.