Banana flavor in beer — the isoamyl acetate ester — is correct and desirable in hefeweizen at 3–5 ppm, and a significant defect in a pale ale or lager at the same concentration.
John Brewster
John Brewster
John Brewster is the homebrewer and writer behind BrewMyBeer — over a decade of all-grain brewing, 80+ BIAB batches, and 1,000+ guides on fermentation science, water chemistry, hops, yeast, and homebrewing equipment. Every guide is written from genuine hands-on experience.
Hazy beer in a style that should be clear is one of the most common homebrewing complaints — not because it’s hard to fix, but because there are several distinct types of haze and each responds to a different treatment.
Flat beer after all the effort of brewing and packaging is one of the most discouraging outcomes in homebrewing — but it’s almost always fixable once you know what went wrong.
A glycol chiller system allows precise temperature control across multiple fermenters simultaneously — the same technology professional breweries use to maintain exact fermentation temperatures in multiple tanks at once.
A HERMS (Heat Exchange Recirculating Mash System) is one of the most capable all-grain brewing setups available to homebrewers — it uses a heat exchanger coil submerged in the hot liquor tank to heat recirculating wort back to mash temperature …
An automated grain mill hopper with a controlled feed rate transforms milling from a manual task that requires constant attention into a set-and-walk-away operation.
Tri-clamp fittings are the standard connection system for professional and semi-professional brewing equipment — they provide a hygienic, tool-free connection between vessels, pumps, valves, and fittings that can be assembled and disassembled in seco
Pressure relief valves (PRVs) are the last line of defense against catastrophic fermenter or keg failures in a pressurized homebrewing system.
A RIMS (Recirculating Infusion Mash System) tube is the heart of any direct-fire mash heating system — it’s a stainless tube with a heating element inside that wort flows through continuously during mashing, keeping the mash at precise temperature wi
A whirlpool arm creates the tangential flow that causes wort to spin in the kettle, concentrating trub, hop material, and protein precipitate into a compact cone at the kettle center.