Coolship
Term from the Brauwerkstatt brewing glossary, category “Brewing and equipment”.
Explanation
Shallow open vessel, usually under the brewery roof, in which the hot wort cools overnight. Once common in many breweries, today mainly used for lambic: wild yeasts and bacteria get into the wort and start spontaneous fermentation.
Test your knowledge
How does lambic ferment?
- Spontaneously, with wild yeasts and bacteria from the air
- With lager yeast at 8 °C (46 °F)
- Without any yeast
Show answer
Correct: Spontaneously, with wild yeasts and bacteria from the air. The wort cools overnight in an open coolship. The beer then matures for up to three years in wooden casks.