Assertion details
Summary
flavouring beer be known 1 since 9th century
1 triples in cluster
flavouring beer be known since 9th century 1
1 source sentences
Source: Shown
Subject: Shown
Predicate: Shown
Object: Shown
Facet: Shown
  • SRC Flavouring beer with hops was known at least since the 9th century , but was only gradually adopted because of difficulties in establishing the right proportions of ingredients .