The oxidizer packets are a one-time use, although the mylar bags could possibly be cut down and reused. Cost of vacuum pump oil starts at $20 a gallon, although that oil can be filtered and reused. An oil-less pump is also an option but will be an upfront cost of
. 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.
Be wary of buying freeze-dryers that come from locations where the unit could have been tampered with or damaged, even by accident.
Building a commercial kitchen can feel like a challenging job. It’s very important you understand the kind of commercial appliances available for purchase beforehand.
One oil free pump. The oil free vacuum pump can be used with any size freeze dryer. They are quiet, fast, and easy to use. The Harvest Right oil free vacuum pumps do not require oil changes and do not require regular user maintenance.
Of course, if someone used a larger can, say a #10, that is bigger than the top of the container that surrounds the filter and captures the oil, then the "disk" wouldn't be needed at all. In that case, an AN8 fitting might work -- or maybe there are longer ones out there somewhere.
6) The first place was the cold return line into the compressor. It had insulation, but a second layer helped stop the constant drips. I used black electrical tape to secure the foam.
I have one of those hand held heat guns (inexpensive from HF), but I was afraid of accidently burning the insulation. My gun gets very hot! I Buy Now do the same technique with a fan, shock the ice and listen for the cracks as it separates from the chamber wall.
Oil Mist Filter: Both pumps come with an oil mist filter. However, the Premier Pump’s oil mist filter allows for no oil spray at all and it will last much longer.
Of course the bags were frozen right in to the mass of berries so it was quite a painful struggle to get the mess to the point where I could hack off slices of the berries to put on the trays.
Additionally, freeze dried food is very light, since all the water is removed, and can be easily transported for hiking and camping or when used during long term emergency needs.
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.
Learn the value of drying foods at home, the nutrition that you will have from dried foods, and how to set yourself up for success while drying.
Additionally, laboratory and commercial freeze dryers typically have more sophisticated software programs that significantly increase the price. However, these are all options for consumers who want to thoroughly search the market.