Gladfield Maize Malt Gladfield Malt

Gladfield Malted Maize is sold pre-crushed. Premium maize grown in the South Island of New Zealand that has a starchy taste, blend flavour. Gladfield Maize Malt allows brewers and distillers to use it directly in the mash, without an additional gelatinisation step. A great malt to use to produce American Light lagers and pilsners to add fermentables with little colour and a unique flavour. It can also be used as the base for a corn whiskey (bourbon).

Maize malt adds mild, less malty flavour to beers and less body. It also provides a drier and crisper beer. Maize Malt should be crushed along with other malts. No need to adjust the mill, cook it, step mash or mill it separately.

To get the most out of the maize be sure to keep the grist percentage at under 30% as the corn will lack the same enzyme potential as barley.

Gladfield recommend adding Rice Hulls to recipes using more than 10% of Maize Malt to avoid a stuck mash.

Complementary malts: 

• Distillers Malt
• Malteurop Pilsner Malt
• Sour Grapes Acidulated Malt
• Wheat Malt

Pack Options:

• 1 Kg Bag
• 5 Kg Bag (SAVE 20% on 1 Kg Price)
• 25 Kg Bag (SAVE 28% on 1 Kg Price)

Properties:

Certificate of Analysis

• MMZ 021 Best Before 18-OCT-2025
• MMZ 023 Best Before 02-APR-2026

Specification:

Certificate of Analysis Result 

• Moisture 6.28
• Extract – Fine Dry 58.92
• Extract – Coarse Dry 41.39
• Extract – Fine As-is 55.22
• Extract – Coarse As-is 38.79
• Saccharification Time <10
• Odour normal
• Colour EBC 2.50
• Total Nitrogen – Kjeldahl (%) 1.59
• Soluble Nitrogen – Kjeldahl (%) 0.28
• Kolbach Index 17.83
• pH 6.21
• Free Amino Nitrogen (mg / l) 61.17
• Friability
• Glassy Corns
• P.U.G.
• Screenings > 2.8mm 97.0%
• Screenings 2.5 – 2.8mm 2.0%
• Screenings 2.0 – 2.5 mm 1.0%
• Screenings < 2.0mm 1.0%

Usage Guidance:

Gladfield Malt recommend adding Rice Hulls to recipes using more than 10% of Maize Malt to avoid a stuck mash.

To get the most out of the maize malt be sure to keep the grist percentage at under 30% as the corn will lack the same enzyme potential as barley.

Gladfield recommend milling the Maize malt along with the other malts. Optimum mill gap is 1.45 mm

Usage Rate Guidance:

• up to 25% in beers and 51% in Bourbon Whiskey making

Shelf Life:

• At least one year when stored properly in dry conditions

Brewing Recipes:

Mexican Lager – 50 Litres
Ingredients:

Malts
7.11 kg Gladfield Pilsner Malt (67.8%)
2.37 kg Gladfield Maize Malt (22.6%)
1.00 kg Rice Hulls (9.5%)

Hops
60 min – 16g Nelson Sauvin

Yeast

• Fermentis 34/70 Saflager Yeast x 4 11g sachets or
• GY030 American Lager GigaYeast – 2 x Gold Pitches

Targets
Original Gravity 1.045
Estimated ABV 5%
Target IBU 11
Mash at 65.6C

Mexican Lager II – 50l (American Light Lager style)
Ingredients:
Malts
6.45 kg Gladfield Pilsner Malt (69.1%)
1.73 kg Gladfield Maize Malt (18.5%)
1.15 kg Gladfield Wheat Malt (12.3%)
Oat Hulls/Rice Hulls

Hops
60 min – 18g Nelson Sauvin

Yeast

• Fermentis 34/70 Saflager Yeast x 4 11.5g sachets or
• Bluestone Lager Yeast – 2  x Pitch

Targets
Original Gravity 1.040
Estimated ABV 4.2%
Target IBU 11.7
Mash at 64.4C