The 10 rules of sourdough 

Most sourdough advice assumes you're home all day with nothing better to do than stare at a jar. You're not. You have a job, or kids, or both, and you still want to pull a loaf out of your own oven that you're proud to hand someone.

So here are the ten rules I actually live by. Not the version that turns baking into a second job. The version that fits into the cracks of a normal week.

1. Weigh, don't measure

A five-dollar gram scale beats measuring cups every time. A cup of flour is never the same cup twice, and that inconsistency was never you doing it wrong. It's the tool. Weigh your ingredients once and half your "why did this come out different" problems disappear.

2. Learn your starter's three states

1. Alive means the culture's still in there, even if it's flat, even if it's been in the fridge for months, even if there's dark liquid on top. 
2. Active means it's been fed and doubled: bubbly, domed, strong. 
3. Ready means it's at its peak, right before it falls.

Confusing these three is why so many people think they killed a perfectly healthy starter. They didn't. They just weren't taught to read the jar.

3. Bake on your starter, not the clock

Skip the rigid schedule. A recipe that says "feed at 8 a.m., mix at 6 p.m." was written for someone else's day, not yours. Bake when your starter is ready, and let the timeline bend around your week instead of the other way around.

4. Use the fridge

Cold isn't failure. It's your best tool. The fridge slows everything down, which means your starter can wait for you instead of the other way around. Feed it, let it wake up on the counter for a couple hours, then chill it until you're ready. The fridge is what makes sourdough fit a real job and a real life.

5. Don't fear the hooch

That dark liquid on top isn't death. It's hunger. It's called hooch, and it just means your starter ran out of food. Stir it in or pour it off, then feed as normal. Your starter is far harder to kill than anyone told you.

6. Respect the rest

Long, slow fermentation is the whole technique, not wasted time. It's where the flavor comes from, where the digestibility comes from, where the whole point of sourdough lives. Rushing the proof is rushing the flavor. The waiting is doing the work, even when you're not.

7. Skip the commercial yeast

Real sourdough rises on wild yeast alone. If a recipe tells you to add a pinch of instant yeast "to help it along," that's not sourdough anymore. Patience is the ingredient the recipe forgot to list, and it's the one that matters most.

8. Warm spot, faster. Cold spot, slower.

Your starter runs on temperature. Somewhere around 75°F it'll peak in 8 to 12 hours. Cooler and it takes longer. Warmer and it races. Nothing is wrong when it speeds up or drags, it's just physics. Find a consistent spot in your kitchen and learn its pace, and you'll stop comparing your jar to a recipe written in someone else's climate.

9. Don't feel guilty about discard

This is the rule people fight me on the most. Throwing some starter out isn't waste, it's just how a healthy starter works. Keep a small starter so there's barely anything to toss. Save what you want in the fridge for pancakes or crackers. And let the rest go without a second thought.

Here's the thing: a jar you feel too guilty to feed is a jar that slowly dies. The guilt kills more starters than the discard ever did.

10. Share the loaf

Bread is meant to leave your kitchen. The point was never the bake. It's the person on the other end of it: the neighbor at the door, the coworker at the desk, the kid tearing into it at the counter. That's why we do this. The loaf you're proud to hand someone is worth every one of the nine rules above it.

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None of this requires a deck oven, a 2 a.m. alarm, or forty free hours a week. It requires knowing which few moments actually matter and letting the rest take care of itself.

That's the whole craft. The rest is just showing up.

Want to dive deeper on sourdough starter? Check out my Starter Course!

For the love of sourdough, Lawrence

P.S. If one of these landed, reply and tell me which. And if there's a rule you'd add, I want to hear it. Your questions and pushback are where half my best emails come from.