Honey strained through a metal sieve measuring 23 meshes per inch, or other meshes per inch as provided in the U.S. grades currently in effect, shall be considered equal to honey strained through standard bolting cloth of the same number of meshes per inch, and may be used in lieu of the standard bolting cloth.

To determine whether honey is free from foreign material, as required for the various grades, a four-ounce sample of honey heated to 130 degrees Fahrenheit shall be strained through the standard bolting cloth or sieve. If any foreign material is left on the cloth or sieve, the honey does not meet the requirements of the grade.