Depending on the method of preparation, defrosting may be suggested. 1  Allow 12 to 24 hours to defrost steaks, depending on thickness.  Allow 4 to 7 hours per pound to defrost large roasts or thick compact pot roasts.
A myth has emerged that none always requires a singular verb. Not true. The word none can take the singular or the plural. In the words of New Fowler: It is a mistake to suppose that the pronoun [none] is singular only and must at all costs be followed by singular verbs or pronouns . . . . At all times since the reign of King Alfred the choice of plural or singular . . . has been governed by the surrounding words or by the notional sense. New Fowler, p. 526.
Some becomes plural too, and them is the appropriate pronoun for agreement. *Some people consider none a strictly singular word, a contraction of no one. We at Grammar Bytes! subscribe to the alternative belief that none is the opposite of all, and, like all, can be either singular or plural.