Umeboshi (Japanese Sour Salted Plums)

Bahan-bahan (1 porsi)

• 3 kg ume plums
• 540 g coarse sea salt ((use 18% of the weight of the ume, or 180 g salt per 1 kg ume))
• 120 ml shochu ((for sterilizing; or use vodka or any alcohol higher than 35% ABV))
• 600 g red shiso leaves (perilla)
• 108 g coarse sea salt ((use 18% of the shiso‘s weight))