Technique

Freeze-Thaw Clarification

Freeze a purée, then let it thaw slowly through a filter — the clear liquid drips out and the solids stay behind.

Difficulty 🧊Freezerstrainercoffee filter or cheesecloth

How it works

Ice crystals rupture cell walls. As a frozen purée thaws slowly, the clear liquid drains out while pulp and pectin remain trapped. No special equipment, no additives.

Basic method

Blend, freeze solid, then thaw in a lined strainer in the fridge for about 24 hours. Don’t squeeze — patience gives clarity.

Works well with

Tomatoes, cucumbers, watermelon, strawberries, stone fruit.

Going further

Adding a small amount of gelatin or agar before freezing (“gel clarification”) gives even clearer results.