IPOW Sourdough Starter Warmer — Precise 1°F Control, 70–100°F, 12h Auto Timer, Fits 40oz Jars

Keep your sourdough fermentation predictable and aromatic with the IPOW Sourdough Starter Warmer. Designed for home bakers who crave consistency, this mat maintains a controlled warm environment that can support a flavorful rise without constant monitoring.

Exact temperature control for reliable fermentations

Choose 70–100°F in precise 1°F steps, with the recommended sweet spot around 75–82°F for a consistent rise. The ability to dial in steps offers flexibility for different starter stages and recipes.

• Precise 1°F increments let you fine-tune the atmosphere
• Ideal around 75–82°F for steady activity

Smart timing and automation

A built-in sensor tracks temperature in real time and supports a 12-hour schedule with auto on/off. Plan your fermentation around your day and reduce hands-on time without sacrificing control.

• 12-hour pre-set start and 12-hour shutdown for planning
• Auto on/off reduces manual checks

Large, versatile heating surface

The 4.53 inch heating area accommodates fermentation jars from 24 oz to 40 oz. It is compact and lightweight, making it easy to place anywhere in the kitchen.

• Fits most common 24–40 oz jars
• Portability with a stable heating zone

Designed for sourdough bakers and gifting

Whether you are a novice or a seasoned baker, this warmer doubles as a cozy warming space when used with a glass cover. It offers reliable, energy-conscious operation that fits into everyday baking rituals.

• Ideal gift for sourdough enthusiasts
• Compact, eco-friendly design supports home baking goals

Note: This device helps maintain a stable environment; outcomes depend on your starter and recipe.