BIAB Grain Bag 27.5 x 32.5 Nylon Mesh Bag

BIAB Grain Bag, 27.5 x 32.5 Nylon Mesh

This 27.5 x 32.5 nylon mesh BIAB grain bag is built for brew-in-a-bag mashing and larger grain-handling jobs in compatible kettles. In a BIAB setup, the bag holds the crushed grain during the mash and acts as the main filter when the grain is lifted from the wort.

The large nylon mesh format is useful for simple all-grain brewing, partial-mash batches, and big steeping jobs where a small muslin or hop bag would not leave enough room for the grain bed to circulate.

Best Uses

• Brew-in-a-bag mashing: holds crushed grain during single-vessel all-grain batches.
• Partial mash brewing: useful when extract recipes include a larger mini-mash or grain addition.
• Large steeping jobs: gives specialty grains more room than a small steeping bag.
• Simple cleanup: lets brewers lift most of the spent grain out of the kettle in one contained bundle.

Fit and Brew-Day Notes

Confirm the bag fits your kettle and grain bill before brew day. Keep the bag off direct heat or sharp kettle hardware, stir carefully to avoid snags, and lift wet grain slowly with proper support. Rinse the mesh promptly after use so grain starch does not dry into the fabric.

For other bag sizes and all-grain supplies, browse our hop and grain bags, grain mills, and brewing equipment collections.