Beer from bread explained

thumb|upright|A 330ml can of Marks & Spencer 'Earl Grey Pale Ale' (5% ABV), made using bread, flavoured with Earl Grey tea, brewed by Adnams

Although most beer is brewed using cereal grains—most commonly malted barley—as a source of starch sugars, it can also be made from bread.^[1]

Beers made from bread include Sahti in Finland, Kvass in Russia and Ukraine, and Bouza in Egypt^[2] and Sudan.

In several countries, 'Toast Ale' is made—in a range of styles—from surplus bread from the catering trade, as part of a campaign to reduce food waste.^{[3] [4]} The recipe is open source. Inspired by this, Adnams brewed a range of three beers exclusively for Marks & Spencer in 2018, using leftover bread from the store's sandwich suppliers. All the waste bread was then used as animal feed.

Notes and References

1. News: Smithers . Rebecca . Raise a toast! New beers made from leftover bread help to cut food waste . . 28 April 2018 . en.
2. Web site: Poor of Cairo drown their sorrows in moonshine – JON JENSEN . www.jonjensen.com . 11 June 2018.
3. Web site: Toast Ale - Award-winning beer brewed with fresh surplus bread . Toast Ale . 11 June 2018.
4. News: Brewery transforms unwanted bread into beer . . 11 June 2018 . 2016.