What is sourdough?

Sourdough bread is made by the fermentation of dough using naturally occurring lactobacilli and yeast. Sourdough bread has a mildly sour taste not present in most breads made with baker's yeast, and keeps better than other breads, due to the lactic acid produced by the lactobacilli.

This process takes place over a long slow fermentation - at Grains our sourdough are lovingly made twenty four hours before they go out for sale, they are prepped, proved, refrigerated and then baked.

Until the development of commercial yeasts all bread was sourdough. In the early 1900s, when speed and consistency became key in bakeries, this was replaced by brewers yeasts which sped up the baking process.

In the 1980s sourdough experienced a comeback and with the growth in television food shows and an interest in the food we eat, what's in it and where it comes from, it's popularity has grown and grown.


Why choose it?


It lasts! Sourdough need never be thrown away, it can easily be used for sandwiches etc for a few days before being toasted towards the end of the loaf.


It's more digestible and nutritious - Lactic acids make the vitamins and minerals in the flour more available to the body by helping neutralise the phytates in flour that would interfere with their absorption.  They also render the gluten in flour more digestible and less likely to cause food intolerance.


It's better for you if you're diabetic - The acids slow down the rate at which glucose is released into the blood-stream and lower the bread's glycaemic index (GI), so it doesn't cause undesirable spikes in insulin.

Sourdough at Grains

We have four daily varieties for you to choose from...

‚Äč well as the occasional Saturday special and a wholemeal sourdough on Thursdays!


A tasty and wholesome sourdough with a toasted sesame crust and mixed seeds inside with nutty undertones.


Baked with light and dark rye flour, gentler on the digestion and an antidote to any mass produced loaf. 


With Milltown ale from Howard Town Brewery with hints of toffee and coffee. Makes great toast, perfect for ale lovers.


Our signature sourdough – lovingly baked over 24 hours using our Grains starter, with a slightly malty taste.

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