# Herb preservation techniques using oil and salt

> Live situation record from CLSTR: https://clstr.news/situations/herb-preservation-techniques-using-oil-and-salt
> Updated: 2026-08-21T06:01:28.000Z. Sources: 3. Developments: 2.

Methods for preserving the flavor and texture of aromatic herbs, such as basil, parsley, and chives, have been highlighted to prevent them from losing aroma or becoming limp during storage.

One technique involves freezing chopped herbs in silicone ice-cube trays covered with olive oil or melted butter. This creates a protective fat layer that prevents ice crystals from rupturing cell walls and losing essential oils, allowing the herbs to remain fresh for months. This method, promoted by Czech chef David Šlapák, helps reduce food waste by providing a ready-to-use flavored oil for dishes like pasta or sauces.

An alternative approach involves packing washed, dried, and chopped herbs with salt into a glass jar, then covering them with olive oil. This mixture is intended to be stored in a cool, dry place, such as a refrigerator, to maintain freshness.

## Timeline

### 2026-08-21: Herb preservation methods using oil and salt

Techniques such as preserving basil in salt and olive oil or freezing herbs in oil-filled ice cube trays can help maintain their aroma and prevent texture loss during storage.

3 sources. https://clstr.news/cluster/herb-preservation-methods-using-oil-and-salt

### 2026-08-02: Herb Oil Ice Cubes Extend Fresh Flavor for Home Cooks

Freezing herbs in olive‑oil ice cubes preserves flavor for months, cuts waste and can be added directly to dishes, a tip highlighted by chef David Šlapák.

2 sources. https://clstr.news/cluster/herb-oil-ice-cubes-extend-fresh-flavor-for-home-cooks

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Cite as: Herb preservation techniques using oil and salt. CLSTR, https://clstr.news/situations/herb-preservation-techniques-using-oil-and-salt