Differences

This shows you the differences between two versions of the page.

--- projects:vacuum_drier:work_logs:1_assembly [2022/10/14 11:22] – tjhowse
+++ projects:vacuum_drier:work_logs:1_assembly [2022/10/14 11:25] – tjhowse
@@ Line 21: / Line 21: @@
   * Mangoes,
   * Kiwi fruit,
-  * Rainbow ice cream.
+  * Rainbow ice cream,
+  * [[https://www.icepac.com.au/product-page/block-dry-ice-10kg-block|Dry Ice]]
 ===== The Assembly =====
@@ Line 27: / Line 28: @@
 {{:projects:vacuum_drier:work_logs:pasted:20221014-110335.png}}
-The vacuum pump pulls a vacuum of about about 50 mbar. The cold trap is a glass jar with a metal lid in an insulated box. The jar lid has two pipe fittings. The jar is submerged in a mixture of methylated spirits and dry ice at about -75°C. The water ice in the food sublimates directly to a gas without disturbing the macro-scale structure of the food. I.E. The ice cream doesn't melt - it maintains its structure and becomes dry. The gaseous water travels along the tube and condenses in the cold trap.
+The vacuum pump pulls a vacuum of about about 50 mbar. The cold trap is a glass jar with a metal lid in an insulated box filled with dry ice and methylated spirits at about -75°C. The jar lid has two pipe fittings. The water ice in the food sublimates directly to a gas without disturbing the macro-scale structure of the food. I.E. The ice cream doesn't melt - it maintains its structure and becomes dry. The gaseous water travels along the tube and condenses in the cold trap.
 {{:projects:vacuum_drier:work_logs:pasted:20221014-112126.png}}