I honestly think putting a thermometer inside the unit is an excellent idea. I sent the following note off to Harvest Right Support in an effort to gain a little better understanding of the process.
Reattached hose and ran another full system test (results, 750 mTorr lowest steady reading - looking through the oil level window, some bubbling seen in oil even after an hour of pumpdown - some "air" noises from pump)
. 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.
Truth be told, there isn’t much of a difference in terms of interface, but the Pharmaceutical models do offer a bit more customization in terms of settings. The Home Pro models however get the job done just as well and have bigger capacity for the money.
As I've shown you, the Small Harvest Right Freeze Dryer is the most affordable freeze dryer. However, if that's not what appeals to you, I know you can't go wrong with the other models. After all, I own the large model.
I did a couple of batches (peas and carrots, and another load of precooked chicken meatballs cut in half) and it all worked perfectly. Looking forward to trying out some new things and sharing the results.
Freeze drying isn’t my only preservation method, but it’s my favorite. Keep the skills of canning, dehydrating, fermenting and more in your pocket Buy Now so you have various ways of preserving food. They all have their pros and cons but none should be ignored.
Ask yourself useful issues. Could you very easily approach entire meals in a single cycle? Or is it very best to system different types of foods individually? Does one know how to load the food trays?
Collaborating with smart freeze-dry machinery manufacturers can greatly increase production reliability. Businesses must also focus on equipment servicing, spare parts, and post-sale assistance for the freeze dryer. The system will reduce downtime and maximize efficiency when properly maintained.
adding insulation on the 3 ports on the chamber (One time thing - the drain and vacuum ports are very easy to get to)
And therein lies the cons to buying a freeze dryer. It takes time to make them cost effective. Depending on humidity in your area, a single run can take up to two days to complete.
The only way I know to filter the water vapor out would be a cold trap. They usually use liquid nitrogen or dry ice to keep the temperature low enough that all the water condenses out. Obviously you would need a supply of the liquid nitrogen or dry ice that would probably not be cost effective for most of us. The other option to get that cold would be to use a cryocooler and build a cold trap around it. It could be done, but would be pretty expensive. I've been watching some electronics on ebay that have cryocoolers in them, but the cheapest I've seen is around $600. Still not a cheap option, but you wouldn't need dry ice or liquid nitrogen to feed it.
5. Noise Concerns: If noise levels become excessive during operation, ensure that all components are securely attached and functioning properly; consider placing the unit in a less frequented area if necessary.
The system records and maintains a log of the pressure and temperature during all parts of the freeze-dry cycle.