How much sugar is required

Bakers yeast only manages to ferment up to 13% alcohol. 17 grammes of sugar gives 1% alcohol in 1 litre of mash. More sugar cannot be fermented out, so it is unnecessary to add more. 221 grammes per litre of mash is used (13 x 17 grammes).

20

itres

of mash

needs

4.5

kg sugar

21

itres

of mash

needs

4.7

kg sugar

22

itres

of mask

needs

4.9

kg sugar

23

itres

of mash

needs

5.1

kg sugar

24

itres

of mash

needs

5.3

kg sugar

25

itres

of mash

needs

5.5

kg sugar

26

itres

of mash

needs

5.8

kg sugar

27

itres

of mash

needs

6.0

kg sugar

28

itres

of mash

needs

6.2

kg sugar

29

itres

of mash

needs

6.4

kg sugar

30

itres

of mash

needs

6.6

kg sugar

With no scales sugar can be measured with a litre measure. 1.15 liters of granulated sugar weighs 1 kg.

With no scales sugar can be measured with a litre measure. 1.15 liters of granulated sugar weighs 1 kg.

Special yeasts are available (Gold yeast 8 kg Turbo, Willes 10 kg Turbo) that can ferment up to 16-18% alcohol. Measure how many litres are to be fermented, then calculate number of litres x 18% alcohol x 17 grammes sugar. Example: 22 litres of mash is to be fermented: 22 x 18 x 17 = 6.732 g sugar or about 7 kg. Dissolve sugar in hot water until it is a syrup, then fill up to 22 litres with cold water and add the yeast.

Note that baker's yeast and ordinary Turbo yeasts cannot ferment out more than 12-14% alcohol. Only high alcohol-tolerant yeasts can manage this, but take longer, 1-2 weeks and liquid temperature may not go over 26oC.

Purer fermentation with Turbo yeast

By using "Turbo yeast" (the generic name) it is possible to ferment a mash with more alcohol and less volatiles in a short time. The first Turbo widely sold was probably "Superjasten" (The Super yeast) by Gert Strand in Sweden, over 10 years ago. The following information about Turbo yeast is copyed from www.partyman.se with the permission of Gert Strand.

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Responses

  • Alan Rider
    How much yeast to ferment 1 kilo sugar?
    8 years ago

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