Question: can soy milk be substituted for evaporated milk?
Answer: Evaporated milk is milk that has water content reduced by 60%. Simmer any quantity of soy or rice milk in a pan until it reduced by 60% to get evaporated milk. Approximately 3 cups of rice or soy milk will leave 1 cup of evaporated milk left at the end. ... It will yield 1-1/2 cups of evaporated milk substitute.