barmSponge to make bread light Very soft batter, made with yeast, flour and water It's allowed to ferment for a length of time 6-12 hr then it's mixed in the pan of flour to make bread rise. Mother made the barm for the bread.Sponge to make bread lightYes#45 DNE-citJ. D. A. WIDDOWSON COLLECTOR'S PERMANENT FILEVery Common UsageUsed I and SupUsed I and SupNot usedCard is stamped DNE-cit, but its contents are not used. In Further Info on Source, year may be 66 or 67 - the second 6 has been underlined and a 7 written next to it