Have you ever tossed out spoiled produce or leftovers? How about those cans of food that are nearing their expiration date sitting on the shelf at the back of your food storage?
Furthermore, the development of vacuum drying and the control of temperature rise have increased the efficiency of the freeze-drying systems which leads to reduced cycle times and lower costs. The development of the industry gives a lot of hope for the future of freeze drying in both the pharmaceutical and food industry.
I thought an easier way to see what was happening would be to make a time lapse video of an entire freeze drying cycle. As I was about to prepare some apples for freeze drying yesterday, I thought it would be a good time to do that -- so out came the GoPro.
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.
seis. Warranties and Support: Look for models that come with warranties and reliable customer support options.
How does freeze drying work? To put it simply, it freezes the food then goes through a sublimation process where it dries the food.
14 Posted December 16, 2015 On 7/31/2015 at 11:12 PM, TonyC said: Here is my first pass on a Vapor Trap... it is an old whole house water filter that I modified. It failed to reduce the moisture in the oil... I'm in the process of modifying it to catch and suspend the moisture in the container long enough for desiccant beads to absorb the water. The air flow comes into the inlet, down the central pipe to the bottom of the screen and filters up through the beads and out the top. I know this was like forever ago, but I thought I would respond anyway. I haven't been on much in a while, I only run my freeze dryer in the winter. So I think you'll find it's a lot harder to remove water vapor from a Buy Now vacuum than just using desiccant, as the vacuum will just pull the water out of the desiccant.
8) The vacuum port was up next. You can see the condensation on the brass fitting. That means cold is escaping and heat is getting into the chamber. This small section was placed inside the panel.
A description of the product, including details such as build quality, materials used and reasons to purchase.
Based upon your work experience you probably know more about vacuum pumps than most of us. Chasing a vacuum leak can be frustratingly difficult.
The only downside is that the interior is now so cold that defrost time has doubled! I use a large high volume fan to defrost the unit, not the heat trays. It used to be a 15 minute job, now it is closer to 30 minutes.
5 Posted September 16, 2015 Thanks dsheidt. I was afraid that the AN8 fittings I could find might not be long enough to provide the space needed so that the oil could flow over the top of the filter, especially given my "disk" method of holding up the can.
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The food options we had there were extremely limited and full of preservatives. To counter that, my buddy Lance went in with family members on the purchase of a freeze dryer for home use.