BIAB Brew Bag 400 µm with Eyelet - Bottom Drain Kettle

Finally! Recirculating BIAB systems can now use the top Tri-Clamp connection of the kettle for recirculation, allowing the lid to be placed on the kettle during mashing. With this product, we insert a stainless steel eyelet into our 400 micron recirculation Brew Bag.

We offer 2 versions of this product. This version is made for the Craft Hardware bottom drain kettle. We assume that you will be using the top Tri-Clamp port for recirculation along with a tall false bottom stand. The eyelet will be placed at the correct height for this setup.

We can make custom versions for most other kettle manufacturers. In order to place the eyelet in the correct location, we need to know the diameter of your kettle and the distance from the top of the false bottom to the center of the return port. For faster service, please provide this information in the order notes.

You can find the full product description of the 400 micron recirculating brew bag here.

The eyelet has an inner diameter of 20 mm. I recommend the new 13mm kettle inside hose adapter along with a piece of 13x19mm silicone tubing for the recirculation return. This makes it easy to install and pull the bag out of the kettle without removing the hose or adapter. I like to use a short 20-30 cm piece of tubing that hangs into the kettle. You can also install a longer piece that wraps around the wall of the kettle to create a whirlpool of sorts. Our Sparge Arm manifold plate fits the 19-mm OD hose, but I don't think it's necessary to use it.

For large brews where the wort level is above the eyelet, I recommend putting a silicone O-ring over the tubing for a better seal between the eyelet and tubing.

Our various 90 and 45 degree open end dip tubes will also fit through the grommet, as will the 18mm kettle inside hose adapter. You can attach a piece of 14x24 silicone hose to these fittings, but the hose must be removed from the fitting when pulling the bag.

Our two piece sparge arm and whirlpool arm are not compatible with this eyelet.

The eyelet must not be used as a lifting point for the bag. It must only be used as a pass-through hole for recirculating.