The Type Of Cake Batter You Should Never Refrigerate Before Baking - Tasting Table
Briefly

Preparing cake batter ahead of time can save substantial effort and clean-up for hosts. Batters can be refrigerated for up to two days, making it easier to manage baking tasks just before an event. However, not all batters are suitable for chilling; sponge cake batter should be baked immediately to preserve its light texture, and batters leavened with baking soda should avoid refrigeration too, as the chemical leavening effectiveness might diminish over time.
"Cake batter can chill just like cookie dough for up to two days. This lets you do half the work ahead of time before your event."
"It's crucial to avoid refrigerating sponge cake batter and batters leavened with baking soda, as they rely on air and moisture to maintain their structure."
Read at Tasting Table
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