WAC 16-450-044   What are the specific controlled atmosphere requirements for winter pears?  To qualify as controlled atmosphere storage pears, winter pears must comply with the requirements in chapter 15.30 RCW, this chapter and the following additional requirements:

     (1) Oxygen content of each room where the pears are stored must be reduced to five percent within twenty calendar days after the room is sealed.

     (2) The pears must be kept in controlled atmosphere storage, under the required degrees of temperature and percentage of air components, for:

     (a) At least forty-five continuous calendar days for Bosc pears; and

     (b) At least sixty continuous calendar days for all other varieties of winter pears.

     (3) All CA-marked winter pears must meet the following standards when shipped:

     (a) Condition standards:

     • No more than two percent decay;

     • No more than two percent scald; and

     • A five percent maximum aggregate for all condition factors including cork.

     (b) Maturity standards:

     • No more than five percent must be advanced beyond "firm."



[Statutory Authority: Chapters 15.17 and 34.05 RCW. 04-05-117, § 16-450-044, filed 2/18/04, effective 3/20/04.]