Air bubbles form when the mixture traps air during mixing or isn’t properly settled in the mold. To avoid them, tap the mold gently, use a piping bag for precision, and work with well-emulsified preparations for a smoother, bubble-free surface.
Air bubbles are common with mousses, creams, and liquid bases, especially in intricate 3D designs. To eliminate them:
Pipe the mixture instead of pouring it directly.
Tap the mold against the counter to force bubbles upward.
Use a smoother, well-emulsified mix to reduce trapped air.
Fill from the bottom up to avoid gaps.
For professional results, some chefs also use:
A vibration table, or
A spatula pass to smooth the first surface layer before filling.
