Originally Posted by CodeRage
I've been wondering if there is any reason not to use a BIAB type liner in a RIMS MLT.
I've attempted an extra large coarse nylon bag with a 1.25 qt/lb mash using a RIMS heater. At ~0.5 gal/minute flow rate (according to my flow switch), the grain in the bag formed a very compact grain bed....which slowed the flow of liquid through the bag and led to air being sucked around the edges of the bag
. Lots of small bubbles in the lines. You could lift a corner of the bag and actually hear a slight suction.
Long story short - epic fail!