We have some really great 'techy' type guys here who are, as they have been exploring the FD mechanics and sharing that in their posts, writing what is turning out to be a 'troubleshooting manual' for us less capable folks.
I've also added an oil catch can that does a wonderful job of trapping oil vapor exiting the exhaust of the pump. Now instead of coating the area in a fine oil mist, the oil settles into the can. The clear tube on the side of the can lets you know how full the can is.
Laura McDonough says: 2 years ago We bought one around the Y2K crises which never happened, ended up using it some, then selling it. I will not clutter up my place with useless crap of all kinds in the future, me and friends said (been there done that).
Commercial freeze dryers are much easier to find than industrial or laboratory freeze dryers as they’re made for the service industry and some manufacturing sectors.
With their assist, it is possible to maintain uniform thickness and Room amongst food slices, advertising and marketing even drying and optimum texture.
The most popular variety is Bartlett pears available the first two weeks in September in Utah. Shop Now If they are to be transported or not processed immediately, pick while slightly green and allow them to ripen in a cool, dark place.
1) I installed a 3/4" wide high density closed cell foam in the gap between the front of the chamber and the back of the front panel - just what Harvest Right suggested except all the way around (the first picture shows the gap). Use your fingers to push it into place. It needs to be tight against the inside panel. I then installed a vapor barrier around the entire FDer chamber. I used 7mil plastic and clear packing tape.
The proper methods of drying are one of these four methods: Air drying, sun drying, oven drying, or dehydration. Learn how to properly do each of these methods.
Size of machine. This is not a small appliance, as shown by the table below using specifications from a popular “home” freeze dryer manufacturer:
It is fun to experiment with innovative preservation methods, but carefully consider the consumer purchasing points above: Know before you go.
Many online stores (taking Harvest Right as an example) have sections of their websites devoted to all the different benefits of using freeze dryers, explaining how to freeze dry, how it affects nutrition, and all other additional info you may need.
One idea I that I had was to freeze-dry sorbet. Sort of a twist on astronaut ice cream. I've had freeze dried strawberries, and those have a nice crunchy texture.
If you are planning to open a restaurant or catering company, you are going to want to buy commercial appliances.
Without an pump isolation valve I would expect some air to flow back into the chamber through the pump resulting in the steady rise you witnessed. I saw the same phenomenon before I installed an isolation valve on my pump.