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A jar of bubbling sourdough starter sitting on a Welsh dresser is one of the quiet pleasures of country living. It costs pennies to keep, it turns a bag of flour into something far greater, and it means you can have bread rising on the Rayburn while you get on with the day. If you have ever been put off by talk of hydration percentages and weighing to the gram, take heart. A starter is simply flour and water left to ferment, and it is remarkably forgiving once you understand what it wants.

Getting a Starter Off the Ground

You need very little to begin: a clean jar, a bag of stoneground wholemeal or dark rye flour, and water. Wholemeal and rye flours carry more of the wild yeasts and bacteria you are trying to encourage than white flour alone, so they give you a head start. If your tap water is heavily chlorinated, draw a jug the night before and let it stand uncovered — the chlorine will dissipate, and your starter will thank you.

Begin with 50g of flour and 50g of water, stirred together in a jar. The consistency should be like thick porridge. Cover it loosely — a lid rested on top, or a square of cloth held with an elastic band — so gas can escape but dust and fruit flies cannot get in. Keep it somewhere draughty-free at around 18–22°C. A kitchen windowsill in summer is fine; a cold stone pantry in winter is not.

For the first week, feed it once a day. Tip half away, then stir in another 50g of flour and 50g of water. You may see a burst of activity on day two or three followed by a lull — this is normal, as the first flush of less desirable microbes gives way to the yeasts you actually want.

A Feeding Rhythm That Suits a Country Kitchen

Once your starter rises and falls predictably within a few hours of feeding, you can settle into a routine. Most of us do not need to bake every day, so choose one of two approaches.

• Counter-top feeding: if you bake two or three times a week, keep the starter out and feed it once daily with equal weights of flour and water, discarding the excess first.
• Fridge storage: if you bake once a week or less, keep it in the fridge and feed it weekly. Bring it out the night before you bake and give it a feed or two to wake it up.

Ratios matter more than precise quantities. A 1:1:1 feed — one part starter, one part flour, one part water by weight — keeps things moving quickly. A 1:5:5 feed is slower and gentler, useful if you want the starter to peak in the morning rather than at midnight. Warmth speeds fermentation; cool slows it. You can nudge either with nothing more than a change of shelf.

Reading the Signs

A healthy starter tells you everything you need to know without a recipe. Look for these signals:

• Rise: it should roughly double within four to eight hours of feeding, then fall back.
• Texture: domed and marshmallowy at its peak, with visible bubbles through the side of the jar.
• Smell: pleasantly sour, yeasty, faintly of yoghurt or apples. Sharp acetone or nail-varnish notes mean it is hungry — feed it.
• Liquid on top: a grey or brown layer of liquid (called hooch) is a sign of hunger, not ruin. Stir it back in or pour it off, then feed.

Pink, orange or furry growths are the one thing to take seriously. If you see mould, bin the lot and start again rather than trying to scoop it out.

Putting the Discard to Work

All that discarded starter adds up, and throwing it away feels wrong in a kitchen where nothing goes to waste. Keep a tub in the fridge and add each discard to it; it will keep for a fortnight and makes excellent quick breads.

For crumpets, whisk 200g of discard with 200ml of milk, 100g of plain flour, a teaspoon of sugar and a good pinch of salt. Leave it covered for an hour or so, then stir in half a teaspoon of bicarbonate of soda — it will froth immediately. Heat a heavy frying pan with buttered metal rings, pour in the batter to about a centimetre deep, and cook gently until the surface is covered in holes and set. Flip, give them a minute, and toast to serve. The same batter, thinned with a splash more milk, makes drop scones for a Sunday breakfast.

Keeping It Going Through the Seasons

Starters are hardier than their reputation suggests. If you are going away for a fortnight, feed it well, seal the jar properly and put it in the fridge — it will survive quite happily. For longer absences, spread a thin layer on baking parchment, let it dry somewhere cool and airy, then snap it into pieces and store the flakes in a sealed jar. Reconstitute with warm water and flour and feed daily for a few days.

Do not fuss over it. The starters that endure in farmhouse kitchens are the ones that are fed when someone remembers, left a little sour, and used often. Keep yours out of direct sun, keep it away from the draught under the back door, and bake with it at least once a week. A lively starter is less a recipe than a habit — and once it has settled into your week, you will wonder how you managed without it.