The refrigeration system can also cool shelves in the product chamber, which helps freeze the product. The refrigeration system cools the condenser located inside the freeze dryer. The major components of a lyophilizer include: The general steps of sublimation are as follows: Chemical resistance requirements for your freeze dryer vacuum pump depend upon the aggressiveness of your solvent. It is also essential to clean the condenser after each run to prevent the sublimation of frozen chemicals into the vacuum pump. If the pump’s flow rate is too high, it will pull vapor through the freeze dryer’s condenser too quickly, reducing the instrument’s efficiency. The pump should be sized according to the lyophilizer. Unlike most dehydration methods, refrigeration is used to provide the low temperatures (in the ULT range) needed to lyophilize a sample, resulting in a better-dried product. Vacuum pumps are used to create an ultimate vacuum of below 0.1 mbar. Freeze-drying, also called cryodesiccation or lyophilization, comprises specific steps requiring vacuum pumps and refrigeration. I bet a lot of people would like to freeze dry just a few things for vegan backpacking meals or stuff like that and would like that service.Lyophilizers work on the principle of sublimation, the process of changing ice, a solid, directly into a vapor without entering a liquid state in between. You could also get more cycles out of it that way and not risk damage from moving it. You stay in control and you can keep the machine running correctly and efficiently. People bring the food to you and you freeze dry and package it for them. What you could do instead is rent use of your machine. Replacing the machine could take months once damaged and if it’s in the middle of harvest season you have some unhappy people who had signed up to use it. Even if they’re trying to they might not run it correctly and damage it. They’ll try to have fun with it and experiment with what can be freeze dried. People don’t treat rented stuff the way they treat their own things. The third and I think biggest problem is that it’s a delicate item that has to be treated gently. I know I would never rent a machine for this reason alone, I don’t want my food to have drug residue. It would be impossible to tell renters what they can and can’t do with it when it’s out of your control and they’ll do what they want even if you try. It’s like peak rates on rental cars.Īnother potential issue is that you’ll get people who rent it for preparing drugs to sell. I would guess the rental cost is so high because in any given area everyone will want to rent it at about the same time to preserve the food from their garden. My main question is: would anyone here actually pay to rent one of these for a month to help preserve their fall harvest or to build up a supply of long term food? I’m also planning on getting insurance, a gps tracker, a legal contract, and an LLC all set up for this just to cover my bases. I don’t want to price gouge people but I do want to give my self a hedge on the risk. I think I’ll also include delivery in the immediate area for that cost as well. That would be about 15% of the upfront cost per month or $630 per month for a medium. I think I’m going to charge based on what I’ve seen for construction equipment. That seems a little high to me considering that’s over 10% of the cost per week for the unit. I’m guessing that they rent that size out because the large one takes a dedicated 20 amp circuit. I could only find one company in California that rents out a medium sized Harvest Right for $560 a week. I can’t justify letting a $5000 machine sit in my garage for most of the time. I looked into renting one for a month for myself to make a years supply of long term food. I don’t grow much food so I don’t really have a year round use for one.
The cost of a freeze dryer is pretty high.
FREEZE DRYER RENTAL FULL
In full honesty, I’m planning on doing this for some side income and I’d like to do a little bit of market research.
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