Because tzatziki contains yogurt and fresh cucumber, keep it cold, covered and handled with clean utensils.
How long does tzatziki last?
For conservative home-kitchen guidance, refrigerate promptly in an airtight container and use within 3–4 days. Discard perishable food left at room temperature for more than 2 hours, or more than 1 hour above 90°F/32°C. These limits reflect USDA leftovers guidance.
Can it be made ahead?
Yes. Making it 30 minutes to one day ahead gives garlic and herbs time to blend into the yogurt. Stir gently before serving.
Can you freeze tzatziki sauce?
Freezing is possible, but it is not recommended for best texture. Yogurt can turn grainy and cucumber can release water after thawing. If you freeze a small portion to avoid waste, thaw it in the refrigerator and whisk gently.
Storage checklist
- Use a clean airtight container.
- Keep the refrigerator at 40°F/4°C or below.
- Do not double-dip serving utensils.
- Label the container with the preparation date.
- When in doubt, discard it.