Strawberry Caviar

Pro tips

• Strain strawberry purée through fine mesh before adding alginate to prevent irregular caviar and bath cloudiness.
• Maintain bath temperature below 10°C (50°F) to slow membrane formation and allow for proper gel layer development before pearls sink.
• Use a spherification spoon or 0.5 mL syringe for consistent pearl size; vary drop height to control diameter.
• Rinse finished caviar in clean water immediately after removing from chloride bath to stop gel formation and preserve the thin, delicate membrane.

Substitutions

• Strawberry purée → Raspberry or blackberry purée (adjusts tartness; may need pH kit recalibration)
• Strawberry compound (Sosa) → Fresh strawberry juice + pinch of agar (creates firmer pearls; texture will differ slightly)

Storage & make-ahead

Store finished caviar submerged in the chloride bath in the refrigerator for up to 24 hours; use within a few hours of making for optimal burst texture.

Equipment

Spherification spoon or 0.5 mL syringe · Two shallow bowls or bain-marie containers · Fine mesh strainer · Slotted spoon or small sieve · Thermometer

What is spherification and how does it work in this recipe?

Spherification is a modernist technique where sodium alginate in the strawberry mixture reacts with calcium chloride (or sodium chloride bath) to form a thin gel membrane around liquid centers, creating caviar-like pearls.

Can I make strawberry caviar without Sosa specialty ingredients?

You need sodium alginate and a calcium or sodium chloride bath for spherification to work. Standard grocery substitutes won't reliably produce the membrane formation required.

How long do strawberry caviar pearls last?

Freshly made pearls are best consumed within a few hours. The gel membrane thickens over time, losing the delicate burst texture. Store in the chloride bath refrigerated for up to 24 hours maximum.

What's the purpose of the pH kit in this recipe?

The pH kit adjusts acidity to optimize alginate gel formation and membrane consistency, ensuring uniform pearl texture and burst characteristics.

Can this technique work with other fruit purées?

Yes, any liquid or purée with similar viscosity can be spherified using the same alginate-chloride bath method, though flavor and color will vary.