Drying
131Non-drying oil — A non drying oil is an oil which does not harden when it is exposed to air. This is as opposed to a to drying oil, which hardens completely, or a semi drying oil, which partially hardens. Oils with an iodine number of less than 115 are considered …
132Freeze-drying — Freeze dry Freeze dry (fr[=e]z dr[imac] ), v. t. [imp. & p. p. {Freeze dried}; p. pr. & vb. n. {Freeze drying}.] to remove the moisture from (e.g. food) by first freezing and then subjecting to a high vacuum; used as a mild method for drying… …
