I migrated from a three vessel brew system to BIAB a few months ago and it’s been an interesting journey. I really like the brew day efficiency of BIAB – less to prepare and clean and a much shorter brew day. However, there are a few things about BIAB for which I’m actively developing solutions. One of those things is filtering the particulates from my wort prior to chilling. Enter the DIY hopback.
I first got the idea from a youtube video and thought ‘That would make a great filter, too!’ I bought an asparagus steamer from Bed Bath and Beyond, drilled some holes and installed my fittings. Here’s a shot of the finished product.
Here are some pics illustrating how this is assembled. Right now, I’m using a very fine mesh hop bag as the filter. It prevents pellets and other particulates from clogging my plate chiller.
Some future plans:
- I’m replacing the vessel with this one. It’s 2 inches shorter and 1.5 inches wider and doesn’t have handles.
- Replace the hop bag with a stainless steel fine mesh screen. This will help with cleaning and durability.
- Weld 1/2″ spuds to the inlet and outlet and ditch the gaskets.
- Install an electronic flow control sensor to turn my pump on and off at specific fluid levels.
I bought a Crouzet NNR110A fluid controller from Mouser. Here’s the link. Right now, I’m using a remote to turn the pump on and off as the vessel fills but sometimes I’m not quick enough and the vessel empties and the pump runs dry for a moment. This will ensure that there’s always fluid inside the vessel preventing any pump issues.
That’s all I have for now.