Grain Processing Corporation
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Since 1943, Grain Processing Corporation (GPC) has produced and marketed high-quality, potable ethyl alcohol made from one source - #2 yellow dent corn. Utilizing both of GPC’s state-of-the-art plant sites in Muscatine, Iowa, and Washington, Indiana, our ethyl alcohol products are sold all over the world for use in applications demanding the highest possible degree of purity. As a result of an unwavering commitment to total quality systems, GPC has literally set the standard of excellence for ethyl alcohol purity and lot-to-lot consistency.

The GPC focus in producing ethyl alcohol is directed to the distilled spirits and beverage industries. Our quality assurance and organoleptic experts ensure that each shipment meets or exceeds domestic USP, NF and Food Chemical Codex standards, as well as worldwide pharmacopoeia published standards.

This same high-quality grain neutral spirits is used to produce a variety of 190 proof and benzene-free anhydrous industrial ethyl alcohol products including:

  • Reagent Alcohols
  • Specially Denatured Alcohols (SDA)
  • Special Industrial Solvents (SIS)
  • Proprietary Solvents (PROPS)
  • Completely Denatured Alcohols (CDA)
  • Duplicating Fluids (DUP)

Pure and denatured alcohol are used in the production of flavor extracts and concentrates for soft drinks and food products, distilled white vinegar, personal care products such as mouthwash, hair sprays, astringents, colognes and perfumes, and a wide range of chemical and pharmaceutical intermediates.

GPC sales personnel are seasoned specialists in alcohol products, dedicated to resolving application and regulatory issues. Their goal is to provide a specific, high-quality product in a timely manner, at competitive rates.

Our customer service is driven by the desire to provide extended customer value. That means once an order is received by phone, fax or electronic means, the customer never has to deal with it again!

Precise production standards, sophisticated analytical quality controls, ample storage for finished product, no-hassle ordering, versatile modes of delivery and timely shipment combine with attention to detail, focus on the marketplace and representatives who understand regulatory matters and how to meet customer needs – hallmarks of a Clearly Superior® GPC alcohol team.

Clearly Superior® is a registered trademark of Grain Processing Corporation.

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alcohol news

  • 3.1.2021
    Grain Processing Opens Large, High-Quality, Efficient Distillery
    [read more]
  • 12.15.2016
    Grain Processing Corporation receives Energy Efficiency award at 4th Annual Iowa Association of Municipal Utilities Conference
    [read more]
  • 5.19.2015
    GPC Announces Major Alcohol Expansion in Muscatine Iowa
    [read more]
  • 5.19.2015
    GPC Anuncia Proyecto de Expansión Mayor en su Capacidad de Producción de Alcohol en Muscatine Iowa
    [read more]
  • 5.7.2015
    GPC's New Dryer House is Operational
    [read more]
  • 4.2.2014
    Grain Processing Corporation Awarded Lab Accreditation
    [read more]
  • 5.5.2010
    Liquor Dealer Recordkeeping and Registration and Repeal of certain Special Occupational Taxes
    [read more]
  • 1.24.2003
    New Agency Regulates Alcohol and Tobacco Laws
    [read more]