Photo 1 of Sourdough Starter Warmer with Memory Function– 1°F Precision Temperature Control (70–100°F), Auto On/Off, 12-Hour Timer, Fits sourdough starter Jars Up to 40oz for Home Baking and Fermentation.

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Photo 1 of Sourdough Starter Warmer with Memory Function– 1°F Precision Temperature Control (70–100°F), Auto On/Off, 12-Hour Timer, Fits sourdough starter Jars Up to 40oz for Home Baking and Fermentation.