When received, you should open the bags/jars straight away, and transfer the contents to a clean glass jar (at least 300 ml volume) or any other container (not plastic or metal) that you will use to keep your Starter in. You will feed the Starter in this container at least once a week (even if you do not bake at that time), so the container should be large enough to accommodate approximately 1/4-1/3 a cup1 of Starter culture and enough space for 1-2 feeds (extra 1/4 a cup), plus some more space to allow the air in and to account for possible expansion.
1st Stage of Starter Activation (Feeding): 2-4 hours.
Add 1 Table spoon of flour2 and clean (filtered or cooled boiled) water, enough to create a runny mixture, similar to pancake dough. Stir to encourage air circulation needed for fermentation3. Cover lightly with cotton towel. This is the .
Leave for 2-4 hours in a warm place (25 C+). Stir from time to time to allow air in, and if the mixture starts to thicken (if you use the flour with high fiber content), add more water. The mixture should be very runny liquid at this stage.
The first signs of life will appear, as the yeasts start waking up. Do not expect the bubbles and big expansion at this stage.
Brown liquid or thin white foam can be formed on top. Mix them in, do not throw them away. The smell should be pleasant and not off. The mixture might look and feel “lighter”, as the yeast has started to feed on it and change its structure.
2nd Stage of Starter Activation (Increasing): 2-4 hours.
Add 1Tea spoon of flour if you only feed the Starter without the intention to bake now, or 3-4 Table spoons of flour if you are increasing it for baking. Add water to the runny consistency as in 1st Stage. You will have approximately 1 and 1/3 - 1 and 1/2 Cups of Starter.
Leave for 2-4 hours, depending on room temperature. As the yeast gets more active and hungry, the mixture will get airy and bubbly, showing the porous structure when lifting with a spoon. The Starter is expected to expand at this stage4.
It might take longer to reach this point initially, but in future with fully active and happy Starter, it normally takes on average 4 hours in total to re-activate (feed and increase) the Starter after taking it out of fridge. This process will be further referred to as Full Cycle of Fermentation (FCF).
If you only feed the Starter, put it back to fridge, lightly covered. If baking, take 1 Cup of Starter to use for baking and put the rest to fridge until the next feed.
NOTE: If you’ve received the Starter dehydrated, add 1/4 Cup of water and let soak for 1 hour before following the 1st and 2nd Stages.
It is very important to transfer the Starter to a new container and feed it on the same day of receiving it, to give the yeast a better chance of surviving after transportation. If you are unable to do this for any reason, open the bag/jar and refrigerate the culture for up to 12 hours, attending to it as soon as you can.
To maintain the Starter, keep it refrigerated for a maximum a week (lightly covered), then it needs to be taken out and fed as per above 1st-2nd Stages.
When going away and unable to feed the Starter at least once a week, thicken it up by adding enough flour to form the dough, place in plastic bag or any container lightly covered, refrigerate for up to a month.5
For baking, take the Starter out of fridge at least 24 hours before you plan to bake.
If you want to make properly soured well-fermented traditional bread full of flavor, or if the room temperature is lower than ideal for the yeast activity (+25 C), take the Starter out of fridge and start preparing it earlier (24-36 hours beforehand) to allow the time for proper activation and longer fermentation periods at each proofings.
11 cup is considered 250 ml in these instructions.
2Wholegrain or Wholemeal Non-GMO, unbleached and preferably Organic flours should only be fed to the Starters. Gluten Free Starter can be fed with variety of Gluten Free flours, varying them at each feeding. Baking can be done with any flour of your choice. Rye Starter can be used to bake all types of breads, Spelt Starter can’t be used for Rye bread baking, as it might not properly leaven it.
3Metal utensils can be used, although the wooden ones are preferable. Avoid plastic.
4The Starters have shown the approximate expansion rates of 1:2.5-3.
5 Spelt Starter is less tolerant to long periods between feeds, hence requiring more regular feedings to avoid the yeasts dying (every 4-5 days).