User blog comment:Xilinoc/Ch. 671 - The Perfect Crimson 2/@comment-24769684-20160421121614/@comment-27133783-20160421145851

I'm not sure if it can reach the same level of coldness as Rukia's white mist sentence. However, he has way better control (with his hand ala Byakuya's senbonzakura) and produce a way more larger mass of ice and a lot more quickly than Rukia can. Plus it has the added ability to nullify/seal an ability of anything he freezes as he did with Gerad's Hoffnung. Maybe this is a foreshadowing that Gerad's miracle healing will not be as effective with Toshiro repeatedly freezing him in this state. If it was Rukia level of cold Gerad would've been ice dust.