How should I freeze my insect cells?

object(WP_Post)#15889 (24) { ["ID"]=> int(144) ["post_author"]=> string(1) "1" ["post_date"]=> string(19) "2017-01-30 12:11:27" ["post_date_gmt"]=> string(19) "2017-01-30 12:11:27" ["post_content"]=> string(119) "Insect cells can be frozen in ESF 921 or ESF AF with 10% DMSO. There is no need for the addition of fetal bovine serum." ["post_title"]=> string(36) "How should I freeze my insect cells?" ["post_excerpt"]=> string(0) "" ["post_status"]=> string(7) "publish" ["comment_status"]=> string(6) "closed" ["ping_status"]=> string(6) "closed" ["post_password"]=> string(0) "" ["post_name"]=> string(35) "how-should-i-freeze-my-insect-cells" ["to_ping"]=> string(0) "" ["pinged"]=> string(0) "" ["post_modified"]=> string(19) "2017-03-28 19:24:10" ["post_modified_gmt"]=> string(19) "2017-03-28 19:24:10" ["post_content_filtered"]=> string(0) "" ["post_parent"]=> int(0) ["guid"]=> string(39) "http://es.dev/?post_type=faq&p=144" ["menu_order"]=> int(0) ["post_type"]=> string(3) "faq" ["post_mime_type"]=> string(0) "" ["comment_count"]=> string(1) "0" ["filter"]=> string(3) "raw" }
Insect cells can be frozen in ESF 921 or ESF AF with 10% DMSO. There is no need for the addition of fetal bovine serum.