BrewTan B (Tanal B) Beer Stabilizer | 1 oz & 1 lb

BrewTan B (Tanal B) Beer Stabilizer

BrewTan B, formerly known as Tanal B, is a brewing gallotannin used as a process aid for beer clarity and stability. It is a high-molecular-weight tannic acid product designed for brewers who want to reduce haze-active proteins, bind iron, and improve flavor stability as part of a controlled mash or kettle process.

What BrewTan B does

BrewTan B reacts with haze-sensitive proteins through adsorption and precipitation. In practical brewing terms, that means it can help reduce chill haze potential and support colloidal stability when it is used correctly. It also chelates iron, which can help limit oxidation pathways that damage beer flavor over time.

• Gallotannin brewing additive for mash tun or kettle use
• Helps reduce haze-forming protein load before fermentation
• Supports flavor stability and shelf-life-focused brewing process control
• Can be used as an iron chelator in the mash or as a kettle fining aid
• Useful for brewers working on bright lagers, shelf-stable packaged beer, and process consistency

How to use BrewTan B

Dose BrewTan B by weight with an accurate gram scale. Do not measure this product by spoon or volume. Slurry or dissolve it in warm brewing water first, then add it slowly while stirring so it disperses evenly and does not clump. Technical guidance from the manufacturer recommends adding BrewTan B solution to mash water before adding malt when using it at mashing-in.

For kettle use, add the BrewTan B slurry before other kettle finings such as Irish moss or Whirlfloc. ATPGroup lists BrewTan B for mash tun iron chelation and kettle fining use.

Supplier dosage guidance varies by application and process. ATPGroup lists BrewTan B at 2-6 ppm for mash tun or kettle use. The Ajinomoto/Natural Specialities mashing-in fact sheet lists typical mashing-in dosage at 1.5-4 g/hL, expressed relative to final 100% malt 12 P beer, with malt quality, adjunct percentage, and beer gravity taken into account. Use the technical sheet and your brewhouse goals to choose the correct dose.

Style and process notes

BrewTan B is most at home in beers where clarity, flavor stability, and clean process control matter. Use extra caution with hazy IPAs, wheat beers, and other intentionally cloudy styles. Standard dosing may reduce haze-active material that those beers rely on for appearance and texture.

Product details

• Product: BrewTan B, formerly Tanal B
• Type: brewing gallotannin / tannic acid process aid
• Common use: mash tun iron chelation, kettle fining, haze and flavor stability support
• Form: light yellow granular powder
• Chemical description: polygalloyl glucoses, hydrolysable tannic acid
• Sizes: 1 oz and 1 lb

Storage and handling

Keep BrewTan B sealed, dry, and protected from moisture. Because the dosing range is small, use a scale that can measure accurately in fractions of a gram. Stainless steel equipment is preferred when preparing and using gallotannin solutions because dissolved iron can form dark complexes with tannic acid.