(1) Except as specified in subsections (2), (3), and (4) of this section, wood and wood wicker may not be used as a food-contact surface.

(2) Hard maple or an equivalently hard, close-grained wood may be used for:

(a) Cutting boards; cutting blocks; baker's tables; serving surfaces; and utensils such as rolling pins, doughnut dowels, salad bowls, and chopsticks; and

(b) Wooden paddles used in confectionary operations for pressure scraping kettles when manually preparing confections at a temperature of 230°F (110°C) or above.

(3) Whole, uncut, raw fruits and vegetables, and nuts in the shell may be kept in the wood shipping containers in which they were received, until the fruits, vegetables, or nuts are used.

(4) If the nature of the food requires removal of rinds, peels, husks, or shells before consumption, the whole, uncut, raw food may be kept in:

(a) Untreated wood containers; or

(b) Treated wood containers if the containers are treated with a preservative that meets the requirements specified in 21 C.F.R. 178.3800 Preservatives for Wood.