Maize
Please check back later for additional changes
Maize (corn) is a cereal grain that can be used as an adjunct in beer. High additions contribute or corn or "popcorn" character.[1]
Corn starch gelatinizes at (73-79°C vs 60-75°C ?). However, corn flakes and corn meal are typically gelatinized during production and can be added to a mash without further pre-treatment.[2][3] The extract content from corn is about the same as for barley malt.
Corn contains a lot of oil that is typically removed during processing to produce flakes or grits.[3][4]
Raw/ungelatinized corn requires a cereal mash. Since the typical gelatinization temp is 70-75°C, 10% malt at 78°C is sufficient to liquefy maize starch. Higher temperatures result in lower extraction since retrogradation takes place if there starch is not liquefied by enzymes (alpha-amylase).[4]
Corn gives beer a full clean flavor.[5]
The gelatinization temperature range for corn grit starch is 62°C to 74°C.[5]
Maize has a gelatinization temperature above that of barley so it must be pre-gelatinized before use. It lacks a husk and has less protein than malt so it does not contribute to filtration in the mash/lauter tun and tends to dilute FAN, TSN, foam potential and color. It has less flavor potential than barley so it is used to enhance the drinkability of beers. It's said to give a smoothness to beer palates. Maize is thought by some to give a corn-like aroma and taste to beer.[6]
References
- ↑ Krottenthaler M, Back W, Zarnkow M. Wort production. In: Esslinger HM, ed. Handbook of Brewing: Processes, Technology, Markets. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA; 2009.
- ↑ Kunze W. Wort production. In: Hendel O, ed. Technology Brewing & Malting. 6th ed. VBL Berlin; 2019:261.
- ↑ a b Kunze W. Raw materials. In: Hendel O, ed. Technology Brewing & Malting. 6th ed. VBL Berlin; 2019.
- ↑ a b Meussdoerffer F, Zarnkow M. Starchy raw materials. In: Esslinger HM, ed. Handbook of Brewing: Processes, Technology, Markets. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA; 2009.
- ↑ a b Stewart GG. Adjuncts. In: Stewart GG, Russell I, Anstruther A, eds. Handbook of Brewing. 3rd ed. CRC Press; 2017.
- ↑ Howe S. Raw materials. In: Smart C, ed. The Craft Brewing Handbook. Woodhead Publishing; 2019.