This cloth bag is big enough for 12 gallon batches and wont explode when lifting the wet grains? That sounds pretty sturdy. Would def be interested in seeing a pic of that. I don't think my MT can hold a large grain bill and all that water for a 12-15 gallon batch, though, so I wouldn't be able to do a full sparge water addition.
looks like this (not my pic):
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When I manage to find time to brew its 5-6 hours for 10 gallon batches and 4.5 - 5 hours for a 5 gallon batch. Add an hour or so if someone is watching me.
My time saving is to do something when something else is happening. Clean while wort boils. Clean while water heats up. Measure while you are waiting for anything to boil or heat.
Heat your wort while you run off if you can. Heat sparge water while you mash.
Wayne.
Your biggest time saver is going to be cutting your mash time down. Cut your mash time to 15-20 minutes and then start recirculating. DO NOT RAISE THE TEMP FOR A MASHOUT! Not only is it unnecessary, but it'll stop the enzyme activity that you need. By the time that you finish recirculating, you'll have a long mash (I regularly only mash for 20 minutes then drain the cooler while batch sparging).
If you only mash for 20 minutes and the wort sits fora half hour before you bring it to a boil, then that's the samething as mashing for an ahour, isn't it?
But I have also read that 30 min is usually sufficient for a basic one-step mash.
Brew time is MY time. I enjoy letting it stretch to 6 or 7 hours. I've done ten gallons in under 5, but my efficiency suffered due to a quick sparge (fly-style).