Kalsec® Hop Bitterness Extracts contain isomerized and reduced hop acids for addition to the brew kettle and/or post-fermentation. Kalsec is one of the originators of advanced hop acid products and extracts, which remain a primary focus today. Paul Todd Jr., Kalsec® founder, was a pioneer in the development of advanced hop acid products, and he holds numerous patents for the technology. All hop acid manufacturing is completed at our state-of-the-art facility in Kalamazoo, Mich.
The input raw material is liquid or super-critical CO2 hop extract, typically from high alpha acid hop varieties. Using sophisticated extraction technology, the hop acids are separated and refined. The processes are tightly controlled in our plant, having strict GHS and SQC qualifications.
Kalsec has been instrumental in developing analytical methods to measure the hop acid concentration, and also to determine the sensory bitterness differences of the different hop acid products.