Sourdough Starter Home with Temperature Control – Compact Fermentation Box with Temperature Control 16-149°F – Fits 1L Jar – Bread Proofing & Starter Incubator for Home Bakers

I've opened the box taken it out and never used it.

PRECISION FERMENTATION DEVICE – Create perfect sourdough every time with the Gearwiz Sourdough Starter Home. It keeps your starter at the optimal temperature for reliable fermentation, whether you're starting fresh or keeping it active. Simply set it up and let the precision do the rest.

DUAL HEATING & COOLING WITH CUSTOM CONTROL – Go beyond standard warmers with our advanced incubator, featuring both heating and cooling functions. Fine-tune the temperature precisely between 16–149°F (-8–65°C) to explore different levels of sourness, flavor complexity, and crumb structure.

SPACE-SAVING, STARTER-FRIENDLY DESIGN – Compact outside but spacious within! Fits one standard 1L jar or two small jars with a removable shelf. Neatly nests on any kitchen counter, making it perfect for everyday bakers with small-space needs.