Do not go to any extra trouble to find Tung if they have good linseed oil. Despite advertising, there is no real difference between the two and they are used interchangeably in the industry in finish blends.
Tung is not used in food as there is a high incidence of people allergic to it... linseed oil is used in food and sets the grade a little lower for linseed as the best oil goes to the food industry. The best tung oil goes into finish... The problem is the oil you can buy is usually not the best grade of tung either.
