Hi, hoping to get a bit of help and advice. I have seen a couple of all grain kits that I wouldn't mind doing. They are both 23l. I am a BIAB, full volume no sparge brewer. My brewhouse efficency is usually around 64%. To get the right OG and ABV, I was thinking of brewing a bit short maybe 21l. Also I usually get fine crush, and this is just crushed. Is my thinking sound and makes sense?
All Grain Kits - BIAB
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Crush size isn't such a consideration with BIAB so the finer the better , but crushed will work fine ( maybe a bit more stirring during mash). When I used to BIAB I would normally allow 1L per KG absorption for the grain and my boil off rate to calculate my full volume. You sound to.me like you have all the right ideas
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The easiest thing is to put your recipe in Brewfather ( or similar ).
It has a BIAB no sparge setting, it'll show you total water volume, mash volume, OG/FG, IBUs etc.
You can scale a 23L batch down if you want to make smaller brews.
It has a BIAB no sparge setting, it'll show you total water volume, mash volume, OG/FG, IBUs etc.
You can scale a 23L batch down if you want to make smaller brews.
64% seems a bit low for BIAB. I used to achieve at least 70% mash efficiency, and with minimal fermenter loss, and a 30 minute boil, the brewhouse efficiency came in around 70% as well, sometimes higher. I even achieved a few 80% mash efficencies.
Give the mash a stir every 15-20 minutes. Ensure you're squeezing the **** out of the bag post mash, and then leave it to drain. I used to have two buckets. One with holes drilled into the bottom. I'd then put the entire grain bag into the two buckets, and press down with a tray to get it all squeezed out.
Give the mash a stir every 15-20 minutes. Ensure you're squeezing the **** out of the bag post mash, and then leave it to drain. I used to have two buckets. One with holes drilled into the bottom. I'd then put the entire grain bag into the two buckets, and press down with a tray to get it all squeezed out.
I generally get 66-68% and that's with a stir at the start, middle and end, dunk sparge and squeeze of the bag.
I did get 73% with one particular batch of base malt, I guess the crush was just right.
Rather than brew short, you could get a 1kg bag of crushed malt and add some extra to compensate for the lower efficiency, or just use sugar - the percentage would be so small as to have minimal impact on the brew, reckon you wouldn't even notice.
