DIY: Vacuum and Temp Monitor Under $150

[cyclopath]

Live Hash without Dry Freezer?

ok, so it is possible to make a diy freeze dryer. all that is needed is a vaccum chamber, freezer, and a cold trap to protect the pump from moisture. set your sample in your vaccum chamber and place the entire thing inside the freezer, after an hour or so once everything is frozen turn on your pump. The pump will run constantly for 24-35 hours depending on the amount of stuff you froze and the water content it has. Around the 24 hour mark the freezer temp can be left to drift to room temp by unp…