Italian to English Other Cooking / Culinary Recipes

This terms also appears in a set of recipes I'm translating, as follows:

"Inzuppare nel cremoso al pistacchio un disco di biscotto alle mandorle e riso ,posizionarlo dentro al fondo di frolla cotto in bianco e raffreddato .abbattere in positivo per qualche minuto."

I found this link which explains what it means:

http://www.marioragona.com/faq/odio-gravida-atcursus-neluctu...

However, I'm still not sure how to express this term in culinary language. It seems you let the food quickly cool to around 10 degrees C, but I'm not sure how, as it doesn't state this in the text. I presume by just placing it in the fridge. Is there a specific term for this?

Many thanks.