So I cleaned out the mash tun/Herms setup that's been out by the shed all winter. Put 60L of water in the boiler and timed it. Went from 21.7 degrees C at 1146 to 65.8 at 1227. I approximated that using an internet calculator to be putting 4.5KW of heat in.
Once that was at 65ish I mashed in my grain for the current BUMPA23 recipe.
https://share.brewfather.app/0VxbzAynJdWXP2
Originally had some sugar in, but that got adjusted post mash as the pre boil gravity was high enough without.
HERMS kept the mash bang on 65C...
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Lovely clear wort
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And apart from forgetting to start the mash timer, it was all going well. Heated up another 40L of water in the boiler for sparging etc, then dropped it into some containers to empty the kettle.
Sparged it all in and fed the fire, was boiling in about 30 minutes.
Does it boil properly?? OH yes it does...
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End of boil I squirted the fire to calm it down and ran the worth through the counterflow cooler I made last year, it still leaks so will have to fettle it a bit.
I had a downspout thing inside the kettle that pints at the bottom of the pot to reduce dead space, worked really well. Mainly hop debris , very little liquid in there.
