Place a bowl on the scale and zero the scale. Spoon Ripe Culture into the bowl.
Zero the scale again. Add Water. Blend the Culture with the Water.
Zero the scale a third time. Add Flour. Blend so all the Flour is wet.
Smear the mixture against the side of the bowl with a plastic scraper.
Transfer the mixture into a plastic container. Dip your fingers in water to remove all the Levain from the scraper.
Press the mixture into the bottom of the container. Clean the wall of the container with wet fingers.
Take the temperature of the Levain mixture. Cover the container. Place a Fermentation Tag on the container.
Ferment the Levain on the floor for two hours (or as directed). Then transfer to the refrigerator for cool fermentation overnight. Temper the ripe Levain to ambient temperature before using it.
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