Yes, tin is safe for storing olive oil. Studies show that tin, especially when dark, effectively preserves the quality of extra virgin olive oil for up to six months at room temperature, even when exposed to light. This is because tin effectively blocks light, a major contributor to olive oil oxidation and degradation. Several reputable sources, including a peer-reviewed study (Effect of containers on the quality of Chemlali olive oil during storage), confirm this. The study specifically found that "Tin and dark glass proved to be quite adequate in preserving the quality of the Chemlali extra-virgin olive oil and avoid oxidation up to 6 months when stored in the light and at room temperature." Furthermore, many brands sell olive oil in tins (1L Everything Olive Oil – Fancy Peasant, Aria Tin Extra Virgin Olive Oil 101 fl oz (3 Liters) – Olive Oil Lovers), demonstrating its suitability for this purpose. While minor dents in the tin may be a cosmetic issue, they typically don't impact oil quality. However, it's important to note that you shouldn't store olive oil in half-empty tins, as exposure to large volumes of air can accelerate spoilage.
Key Benefits of Tin for Olive Oil Storage:
- Light Protection: Tin effectively blocks light, preventing oxidation.
- Preservation of Quality: Studies show it maintains olive oil quality for a considerable period.
- Widely Used: Many olive oil brands utilize tin containers.
Things to Consider:
- Avoid Half-Empty Tins: Keep tins full to minimize air exposure.
- Cosmetic Issues: Minor dents don't generally affect oil quality.
