| 摘要 |
<p>A method for freeze-drying a product using a freeze-drying apparatus, said method comprising the steps of providing a freeze-drying apparatus 5 (1), providing said freeze-drying apparatus with a plurality of product receptacles (11) comprising a solid bottom (14) and an open top (13), and with a plurality of heating elements (10) comprising a bottom surface (16) and a top surface (15), providing a product to be freeze- dried in each of said product receptacles (11), placing said product 10 receptacles (11) and said heating elements (10) above one another such that at least one heating element (10) is placed between each two product receptacles (11), and providing heat radiation from said heating element (10) to said product, wherein the energy of said heat radiation is dependent on whether the heat is transferred directly to said product 15 or through the bottom (14) of said product receptacle (11) to said product.</p> |
