Progess report. Behemoth the Boiler (I like to give them names) has been initially tested. I boiled about 20L water on the cooker - all 4 burners going - to see how it copes with heat, if there's a dodgy seam. All ok. Couldn't boil more as I'd have to wait all day
Now, I've filled it to the brim to see wether the weight & pressure cause a leak. All ok so far.
Now then...The 33L S/S pot arrived today except it didn't. What the silly sods sent instead was a 22L S/S insulated pot! I don't want it...but it has given me, and therefore as a collective group of brewing bretheren, us, a chance to evaluate it's suitability as a mashtun which was something I asked them about but got no reply. I'll just fill it with water adjust to strike temp, say 72c, let the pot warm up and settle to 65c, clamp on the lid, and see how it performs over a 90-120 minute period. Result!
Then I'll dry it off very carefully and repackage it so they can come and pick it up! 20L is no use to me as my current mashtun is bigger than that.
Tapping tests suggest it might have insulation material between the walls as it doesn't sound hollow. As to wether there's a vacuum as well, I don't know. If it holds heat well I'll press them for an answer as the vacuum issue is important when I come to drill holes in it. If it all checks out I'll probably get a 50L one to up-gun my mashing capacity.
