This use of leaven for raising bread has been practiced for ages.

When our remote ancestors saved a pinch of dough as leaven for the next baking, they were actually cultivating yeast, although they did not know it.

It is not so important that many should be as good as you, as that there be some absolute goodness somewhere; for that will leaven the whole lump.

But I excuse it, it is impossible to expect the son of a Girondin to be free from a small spice of the old leaven.''

It is not so important that many should be good as you, as that there be some absolute goodness somewhere; for that will leaven the whole lump.

But with the success the club had been enjoying, together with the increased crowds at their Memorial Grounds venue, he relented, and was quoted as saying ""It may be necessary to introduce a little ferment of professional experience to leaven the heavy lump."" New signings came thick and fast and included the controversial capture of goalkeeper Tommy Moore from arch-rivals Millwall.