Tuna caught, processed, and stored using the ULT method keeps its high-value characteristics for many months while frozen because bacteria growth is suspended at Ultra Low Temperatures.

Under ordinary freezing conditions, tuna flesh is quickly discolored and the product becomes unsuitable for sashimi consumption. Tristan ULT Tuna has the same great taste and cooking characteristics as fresh tuna. Unlike CO (carbon dioxide treated) tuna, our products are ALL NATURAL, without any chemical or color enhancements. As the FDA only approves fish that has been previously frozen, our ULT Tuna is the ONLY FDA approved, all natural, sashimi grade product available.

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