SAFETY NOTE: Always freeze salmon at -4°F (-20°C) or below for at least 7 days before eating raw to eliminate potential parasites (FDA recommendation). Most home freezers sit near 0°F (-18°C), which is not cold enough; check with a freezer thermometer. Thaw overnight in the refrigerator, or in a sealed bag under cold running water. Never at room temperature. Sashimi is best eaten immediately after slicing. A sharp, long-bladed sashimi knife produces the cleanest cuts and best texture.