Cold Fermentation

Cold fermentation (also called cold retarding or cold proofing) is the practice of placing dough in the refrigerator to ferment slowly over an extended period. The cold temperature dramatically slows yeast activity while enzymatic processes continue, resulting in more complex flavors.

Why cold ferment

• Better flavor: Enzymatic activity breaks down starches into sugars and produces organic acids, creating a more nuanced taste
• Improved browning: More available sugars mean better Maillard reaction and caramelization in the oven
• Scheduling flexibility: Make dough today, bake tomorrow (or the day after)
• Easier handling: Cold dough is firmer and easier to shape, especially high-hydration doughs
• Better texture: Extended fermentation develops a chewier crumb with more character

Time and temperature

The process

• After bulk fermentation: Divide, ball, and place in oiled containers
• Cover tightly: Prevent skin formation with lids or plastic wrap
• Refrigerate: Place in the coldest part of the fridge (not the door)
• Before baking: Remove 1-2 hours early to warm up for easier stretching

Signs of readiness

• Dough has roughly doubled in size
• Gently poke test leaves a slow spring-back
• Pleasant, slightly tangy aroma
• Surface has small bubbles

Common styles using cold fermentation

• Neapolitan: 24-72 hour cold ferment after room temp bulk
• New York style: Often cold fermented 24-48 hours for chewier texture
• Detroit: 24-48 hours in the pan for convenience
• Sourdough pizza: Cold retard enhances the sourdough tang

In Fond

Fond's Pizza Workshop figures out your fermentation timing for you. Pick a pizza style and it adjusts the cold ferment schedule based on your environment and room temperature.