Kilned and Roasted Speciality Malt Flashcards
What is the capacity of drum roasters used for speciality malt production?
Up to five tonnes
What is the main component of a drum roaster that ensures grain mixing?
Curved vanes
How is grain loaded into the drum roaster?
Via a hopper
What happens at the end of the roasting cycle?
The front of the roaster is opened to discharge the hot grain into a cooling hopper
What is used to cool the grain in the cooling hopper?
Cooling air drawn through the grain from below
What heating system is used in drum roasters?
Gas burner
What are the two types of heating used in drum roasting?
Indirect heating and direct heating
What temperature range is used to heat amber malt?
From 48°C to 170°C
What is the diastatic power of amber malt compared to pale malts?
Amber malt retains a small amount of diastatic power, much less than pale malts
True or False: Brown malt is typically roasted at a lower temperature than amber malt.
False
What is the maximum temperature for roasting brown malt?
Up to 176°C
What temperature is chocolate malt roasted to?
Up to 225°C
What temperature is black malt roasted to?
Up to 235°C
What is done at the end of the roasting cycle to stop the process?
The grain is quenched with water
Fill in the blank: Around ______% of the grain’s dry weight may be lost during the roasting process.
15
What color does amber malt impart to beer?
Dry, biscuit-like flavour with light toffee notes
What flavor does brown malt impart?
Mild biscuit/coffee notes
What strong flavors does chocolate malt impart?
Strong coffee and burnt toast notes
What flavor profile does black malt provide?
Smoky, harsh burnt coffee/toast notes
What is a common practice among speciality maltsters when roasting black malt?
Removing the husk before roasting
What types of beers often use chocolate and black malts?
Stouts, porters, and other dark beers
What is one reported benefit of roasted malt products in beer?
Promote foam stability
