Move the toasted berries to a pressure cooker, add the water and salt, and cook on high heat until hissing begins and pressure rises. Lower heat to maintain a low hiss and cook for 45 minutes. Release the steam of your pressure cooker using the manufacturer’s instructions, or by running under cool water for 5 minutes. The berries should have a toothy, al dente texture. Drain, if necessary. Cooked wheat berries can be stored in your chill chest for up to 1 week.