Rehydrate Your Sourdough Starter

If you’re here and reading this, you’ve either purchased some of my dehydrated sourdough starter (THANK YOU), or you’ve somehow gotten your hands on some dehydrated sourdough. Regardless, you’re in for a treat. The sourdough journey has been a fun one, and I’ve made so many yummies with mine.

I’ll start by saying, this is not a quick process. It’s going to take several days. You’ll need a couple of things:

  • A digital kitchen scale – I like this one. It’s similar to the one I have and use regularly. It just needs to be able to measure in grams.
  • A glass jar with a lid – I like these. I recommend a set of 2. That way, you can alternate and wash them as needed
    • You may also need a cup, or a smaller jar for the beginning stages
  • Flour – I use all purpose flour. I’ve used bleached and unbleached and have noticed that the bleached typically yields a higher volume rise once established.
  • Water – I use bottled water because I have city water, but I’ve heard of people having success with water straight from the tap.

Let’s get rehydrated:

Unless specified, assume that all steps are performed in the morning

Day 1: I like to do this in a cup or smaller jar since the quantity is pretty small and you won’t get much volume

  • Combine 5 grams of dried starter and 25 grams of water to your jar and mix. Cover with the lid of jar or tea towel and place in a warm spot for an hour. I’ve had success with putting my starter in the oven with just the light on.
  • After the hour, the starter should be dissolved in the water. Add 20-25 grams of flour and stir until fully combined. Cover and put back in the oven with the light on. Leave overnight

Day 2: You’ll see little to no activity – few bubbles, if any, will be present

  • Discard/throw away half of the starter in the cup.
Discarding allows us to use a smaller amount of water and flour to feed and revive. At this point, we’re just trying to wake up the cultures so we don’t need as much. There will come a time where you can save the discard and use it in recipes. This is not that time
  • Add 20-25 grams each of water and flour. Mix, cover, and store for 24 hours

Day 3: There may be a few more bubbles, but still very little activity

  • Discard/throw away half of the starter
  • Add 20-25 grams each of water and flour. Mix, cover, and store for 24 hours

Day 4:

  • MORNING – still very little activity
    • Discard/throw away half of the starter
    • Add 20-25 grams each of water and flour. Mix, cover, and store for 24 hours
  • EVENING (approximately 12 hours later) – here’s where we have some action!! You should start to see quite a few small bubbles on the top and sides. You should also see some rising action
    • No need to feed. Continue storing in the oven with the light on

Day 5: You should see a lot of bubbles and your starter should have risen to twice the size by now. You can transfer the starter to the bigger glass jar if you’re working out of a cup. If you’re still not seeing the activity you think you should, see the note at the bottom!

  • Discarding isn’t necessary. From here on out, you’ll want to feed your starter daily or every other day (depending on how much you want to use).
  • With this amount, I’d personally use 50 grams of flour and about 45 grams of water. Mix, cover and store.

I maintain my starter by feeding her every day to every other day. Here’s how I do it.

I have an empty pickle jar where I keep my discard in the fridge. I use it to make crackers and numerous other discard recipes. I discard until that jar is full, or half, whichever comes first.

I use a regular table spoon (the bigger of the two “kitchen” spoon types) and put 4-5 heaping spoonfuls of flour (about 100-125 grams) into my starter. I then pour about 80-90 grams of water and mix. I like my starter to be the consistency of a thick pancake batter. I then put the lid on loosely so the gasses can escape, put it in my oven with the light on, and let her be.


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Warning

Depending on varying factors (temperature when stored, type of water used, flour used, etc.), it could take more than 5 days to fully revive. If you’ve noticed that day 4 isn’t yielding the bubbles you think it should, be patient. Keep discarding and feeding with the same ratios and you’ll get the activity eventually. If, after 2 weeks you’re still not seeing activity, head to my Contact page and send me a message!

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