Specialist Yeast Strains
London And South Eastern Region
Thames Valley 1 – Single character. Standard bitter production. Moderate fermentation speed. Light mineral worts preferred. Moderate ester ability. Moderate flocculation.
This classic English ale yeast is an all-round performer with good fermentation abilities, forgiving of wort character and producing a neutral to light flavoured beer. Limited sulphur is produced under stress and phenolic off flavours are not produced. It flocculates moderately producing a strong head initially but cells sediment rapidly at the end of fermentation forming a compact sediment.
Thames Valley 2 – Single character. Standard bitter and strong ale production. Slow fermentation speed. High mineral worts preferred. Moderate ester ability. Moderate flocculation.
This southern English ale yeast has slow but steady fermentation abilities, prefers a mineral wort and produces a low ester flavoured beer. Very low sulphur is produced under stress and phenolic off flavours are not produced. It flocculates moderately producing a medium head initially and cells sediment slowly at the end of fermentation forming a broad sediment.
Thames Valley 3 – Single character. Standard bitter production. Slow fermentation speed. High mineral worts preferred. Moderate ester ability. Strong flocculation.
This London ale yeast has slow but steady fermentation abilities, prefers a strong mineral wort and produces a low to moderate ester flavoured beer. Very low sulphur is produced under stress and phenolic off flavours are not produced. It flocculates strongly producing a light head initially while cells sediment rapidly at the end of fermentation forming a strong sediment.
Sussex 1 – Single character. Standard bitter and strong ale production. Fast fermentation speed. High mineral worts preferred. Strong ester ability. High flocculation.
This Sussex ale yeast has fast fermentation abilities, prefers a mineral wort and produces a ester flavoured beer particularly at high gravities. Moderate sulphur may be produced under stress and some spicy or phenolic flavours may be produced. It flocculates well producing a strong head initially but cells sediment slowly at the end of fermentation forming a broad sediment.
Midlands
East Midlands 1 – Single character. Standard bitter and dark ale production. Moderate fermentation speed. Low mineral worts preferred. Low to moderate ester ability. Low flocculation.
This Midlands ale yeast has slow but steady fermentation abilities, prefers a low mineral wort and produces a low ester flavoured beer. Moderate sulphur may be produced under stress but no phenolic off flavours are produced. It flocculates poorly producing a light head initially but cells sediment strongly at the end of fermentation forming a strong sediment.
Burton 1 – Single character. Standard bitter production. Moderate fermentation speed. Low mineral worts preferred. Moderate ester and strong sulphur ability. Low flocculation.
This classic Burton ale yeast has slow but steady fermentation abilities, prefers a low mineral wort and produces a sulphur flavoured beer. Light phenolic flavours may be produced. It flocculates slowly producing a light head initially but cells sediment well at the end of fermentation forming a dense
sediment.
West Country
Devon 1 – Single character. Standard bitter production. Rapid fermentation speed. Low mineral worts preferred. Moderate to strong ester and moderate to strong sulphur ability. Moderate flocculation.
This West Country ale yeast has slow but steady fermentation abilities, prefers a low mineral wort and can produce a sulphur flavoured beer. Moderate to high ester flavours giving a banana aroma. Light phenolic flavours may be produced. It flocculates moderately producing high head initially and cells sediment moderately at the end of fermentation.
Northern England
Yorkshire – Single character. Standard bitter production. Moderate fermentation speed. High mineral worts preferred. Moderate ester and moderate sulphur ability. Medium flocculation.
This Yorkshire ale yeast has moderate fermentation abilities, prefers a high mineral wort and can produce a sulphur flavoured beer. Moderate ester flavours may develop. Light phenolic flavours may be produced. It flocculates moderately well producing a good head initially and cells sediment moderately at the end of fermentation.
Lancashire – Single character. Standard bitter production. Slow fermentation speed. High mineral worts preferred. Light ester and low sulphur ability. Medium flocculation.
This Lancashire ale yeast has slow but steady fermentation abilities, prefers a high mineral wort and produce limited sulphur flavour. Low ester flavours and no phenolic characters are produced. It flocculates moderately well producing a light head initially and cells sediment well at the end of fermentation.
Tyneside – Single character. Standard bitter production. Moderate fermentation speed. Low mineral worts preferred. Light ester and low sulphur ability. Low flocculation.
This Tyneside ale yeast has moderate fermentation abilities, prefers a low mineral wort and produces low sulphur flavour. Low ester flavours and no phenolic characters are produced. It flocculates lightly producing a light head initially and cells sediment well at the end of fermentation.
Scotland
Borders 1 – Single character. Standard bitter, brown ale and dark ale production. Moderate fermentation speed. Low mineral worts preferred. Strong ester and strong sulphur ability. Medium flocculation.
This Scottish ale yeast has moderate fermentation abilities, prefers low mineral wort and can produce a sulphur flavoured beer. Good ester flavours and phenolic characters are produced. It flocculates moderately well producing a light head initially and cells sediment well at the end of fermentation.