Late-night SOS texts about sourdough starters

At 1:17 a.m., my phone buzzed on the bed. A text from my friend Jess. "My starter smells like booze. Is it dead?" Face buried in my pillow, I typed back with one hand. "It's not dead, it's hungry. Feed it some flour." I get texts like this three or four times a week. It all started when I posted a sourdough bread photo on Instagram last year. After that, everyone around me jumped on the sourdough starter bandwagon, and I became the unofficial sourdough hotline.

As a nutritionist, I can explain the science behind fermentation, but I failed countless times myself in the beginning. I vividly remember a Chicago winter day when our kitchen temperature dropped below 60°F and my starter didn't budge for two straight days. This isn't an expert lecture. It's a collection of frequently asked questions put together by someone who struggled through the same things.

"My starter smells weird. Should I throw it out?"

This is the question I get the most. Short answer: don't toss it just because of the smell.

A sourdough starter is a living fermentation ecosystem, so it smells different at each stage. Here's what I've run into:

• Sour, vinegary smell: Normal. It means it's hungry, so just feed it.
• Alcohol smell (like beer): Also hungry. A brown liquid (hooch) may pool on top. Pour it off, add flour and water, and it'll bounce back.
• Acetone or nail polish remover smell: It's been starving for a while. Feed it twice a day for several days and it will usually come back to life.
• Moldy smell with pink or orange spots: This is when you genuinely need to throw it out. As painful as it is, it's better to start fresh.

Jess's starter was the second case. She hadn't fed it for three days, so hooch had built up. That's why I replied, "Feed it some flour."

"How many times a day should I feed it, and exactly when?"

This is another thing people stress over. Search the internet and you'll find a lot of "every 12 hours on the dot," but I don't keep to that rigid a schedule.

Here's my routine: once when I wake up in the morning, once while I'm prepping dinner. That's roughly a 10 to 14 hour gap, and it varies a little every day. If I forget before heading to work, I'll think "Oh, the starter!" around lunchtime at the office, but feeding it when I get home in the evening has never been a problem.

The key is the ratio. I mix starter, flour, and water at a 1:1:1 ratio by weight. 50 g of starter, 50 g of flour, 50 g of water. I used to eyeball it with a measuring cup, and the results were all over the place. Once I bought a $15 digital kitchen scale, things became much more consistent.

Temperature matters too. Chicago winters are brutal on sourdough. When my kitchen gets cold, I put the starter jar inside the oven (turned off, just the oven light on, which generates a bit of warmth). After I started doing this, the fermentation speed improved noticeably even in winter.

"It hasn't risen in days. Should I give up?"

My younger sister called me on the third day after starting her starter. "It's doing nothing. It just looks like flour paste." I laughed and said, "That's normal, give it at least a week."

A sourdough starter typically takes 7 to 14 days to become consistently active. It rises a little during the first two days, then between days 3 and 5, there's a period where nothing seems to be happening. That's when most people quit.

Here's my rule of thumb:

• Up to day 7, just keep feeding it steadily.
• If there's still no sign of rising after day 7, try switching flours. I once turned things around by mixing in whole wheat flour. Whole wheat has more wild yeast on it, which helps kick-start activation.
• If there's still no activity after day 14, check your water. Chlorinated tap water could be the culprit. Try using filtered water or water that's been left out overnight.

My sister's starter finally began to rise on day 9. Since then, she's been baking bread almost every week.

"What do I do with my starter when I go on vacation?"

Last summer, when I went on a weekend trip up by Lake Michigan, I just put my starter in the fridge and left. Fermentation slows way down in the fridge, so it can go about a week without feeding.

When you take it back out, there may be hooch pooled on top. Pour it off and feed it, and it'll be active again within a day or two. For trips longer than two weeks, you can also dry some of your starter for storage. Spread it thin on parchment paper, let it dry completely, and store it in an airtight container. Even months later, you can revive it by adding water and flour.

I don't even flinch at late-night texts anymore. If anything, I'm happy that someone is getting into fermentation. A sourdough starter really comes down to flour, water, time, and a little patience. There's no such thing as perfect timing. Just take care of it consistently, and it'll be fine. If you've ever panicked over your starter in the middle of the night, let me know what happened in the comments. I'd love to help you troubleshoot.