The freeze dryer should be set up in an area that has good ventilation and isn’t too hot or too cold. The ideal operating room temperatures for the freeze dryer are between 50 and 75 degrees Fahrenheit. A little hotter and colder is not a big deal, those are just the ideal temperatures. The freeze dryer should not be boxed into a corner or cabinet, but should have room to breathe, so to speak, on each side, to prevent overheating of the pump, electronics, and refrigeration components.

The freeze dryer needs to be able to drain the water removed from your food at the end of the batch. The water cannot drain properly if the freeze dryer is on the ground. For proper draining, be sure the freeze dryer is set up on a horizontal surface at least 3 feet above the ground, with the drain hose dropping vertically from the freeze dryer (not resting horizontally on the same surface as the freeze dryer).

For foods, the factory settings on the Home Freeze Dryer are all set and ready to go and should not need any adjustment (although you are welcome to experiment). For candy, we recommend setting the tray or shelf temperature limit to 150 degrees Fahrenheit. For pharmaceutical products it’s usually best to set the shelf temperature down to around 45 degrees Fahrenheit, although experimentation is likely required to get the temperature just right for the desired results for each specific pharmaceutical product.

If you find that a certain type of food is not finished at the end of the process, you can add extra dry time at the end of the cycle. The next time you freeze dry that food, you may want to go into your settings and add additional dry time beforehand. If you’re finding that a certain type of food is requiring additional freeze time, you may want to consider adding additional freeze time to this type of batch beforehand the next time.

For more information about candy mode- watch this video: Watch Video.

The Harvest Right freeze dryer was originally designed for food storage and preservation. Over the last few years, freeze dried candy has become very popular among customers and consumers alike. Harvest Right has done its best to create a software program that would help assist candy makers in getting better candy results and shorter run times. Activating that program on our latest software version is outlined step-by-step in the video linked in the previous paragraph (Watch Video).

The freeze drying process was designed to remove water from food. There are certain foods that do not freeze dry well, such as chocolate and foods that are high in oil or fats. Similarly, there are candies that do not freeze dry well due to the structure and ingredients of the candy and the difficulty of removing water from different substances and structures.

Many times there is nothing functionally wrong with the freeze dryer, or any of its parts, and yet a certain type or brand of candy does not dry or puff up as desired. Unfortunately, we do not have all the answers as to specific settings, or preparation tricks, for each and every type of candy, however, we will always do our best to help in any way that we can. In turn, we ask that customers take the time to research and experiment with different candies in order to figure out what works best for them in their unique circumstances.

The purpose of freeze drying is to remove water from the food. Keep this in mind when preparing your trays of food and ask yourself the question: How can I prepare this food in a way that will allow the water to release easily? For items like blueberries, which have a consistent skin around the outside, it is necessary to poke holes in the skin or cut the berries in half in order to create a way for the water to escape during the freeze drying process.

In general, cutting your food items into small, single layered slices is the best way to set yourself up for success in freeze drying. Each item needs to be touching the tray in order to fully dry properly, so, do not layer your food on top of each other. Another good rule of thumb to follow is not to let your food exceed the rim of the tray, especially for items with high water content like fruits, vegetables, liquids, etc.

The more food you put into the freeze dryer, the more water there is that will need to be removed from the food, and the longer the batch will take. Smaller batches that finish in half the time are easier on my freeze dryer (and vacuum pump) and provide consistent, dry results as opposed to doubling the food and doubling the process time while risking errors and wear-and-tear issues that stem from overloading.

This video will show you how to set up your freeze dryer. It’s simple to do. We talk about the best place to store the freeze dryer, how to clean and prep it to for its first run; filling the pump with oil, attaching the vacuum hose, placing the drain hose into the proper receptacle, and set-up specifics for power, etc.

1. Watch the video, "How To Use Your Freeze Dryer"
2. Download the PDF, "How to Use Your Freeze Dryer"

Watch and follow the instructions in the video, "How to Rehydrate Your Home Freeze Dried Food"

• Is the drain valve closed? (The small handle on the valve should be perpendicular to the direction of the drain tube.)
• Have you cleaned the door?
• Is the black rubber gasket (door seal) clean?
• Have you replaced the oil in the vacuum pump?
• Is the vacuum pump filled with oil to the middle of the sight glass?
• Is the door closed and compressed tight?

1. Watch and follow the instructions in the video, "Removing Shelf from Freeze Dryer"
2. Then wash the shelf and the inside of the chamber with warm soapy water and rinse with warm water.

1. Watch the video, "How to Replace Your Door"

In order to talk with someone in Technical Support you will need the following:

• Your name
• Serial Number of your freeze dryer (found on the back of the unit)
• Your freeze dryer “log files.” These files contain all the information about how the freeze dryer has been working. You can get the log files by doing the following:
  • Put a blank thumb drive into the USB port on your freeze dryer.
  • Power off your freeze dryer and wait for 10 seconds.
  • Power your freeze dryer back on and wait for the files to load onto the thumb drive. This could take a few seconds, or a few minutes, depending on how many batches you have run.
  • You will know that it has finished when the screen comes back to “Start” on your freeze dryer.
  • Then take out that thumb drive and insert it into your computer and e-mail your Harvest Right technician the file that was downloaded onto the thumb drive. That file is titled “Harvest.”

1. Watch the video, "Packing Up Your Freeze Dryer"

See Owner's Manual

VERSION 6 SOFTWARE UPGRADE FOR VERSION 5.4.x AND VERSION 5.5.x

IMPORTANT: If you purchase the Wi-Fi Adapter Kit, you DO NOT need to follow these instructions. The Wi-Fi dongle already comes with Version 6 software preloaded. Simply follow the instructions that are included with the Wi-Fi Kit.

New software – Harvest Right Freeze Dryers
Please read through instructions before downloading the Version 6 Update.

It is important to note that this new software release only works on freeze dryers that are currently installed with software that begins with v5.4.or v5.5. On the home screen of the freeze dryer, there is a number that tells you which version of software you have. Once you have begun updating to version 6 you will be unable to revert to any prior version.
Do not interrupt the update process once it has started.

IMPORTANT – Please read before updating software:

• Versions that begin with v5.0, v5.1, v5.2, v5.3, or lower are not eligible for the upgrade to version 6 or Wi-Fi.
• No support will be available to revert back to a previous version.
• Please download or read the most recent USER MANUAL.

If you attempt to update an incompatible freeze dryer to version 6, this will not harm your machine, the update will simply stay on your current version. Please do not share the software with other customers, direct them to this page to download.

Software Upgrade Instructions:

1. Follow the instructions above to verify the software you are currently using.
2. Once you have downloaded the zip folder to your computer, open it by double clicking on it. Then copy all five files in the zipped folder onto the root of a 16GB thumb drive (not in a folder). The update will not finish without all five files present on the USB thumb drive.
3. Turn off your freeze dryer.
4. Insert the USB device with the Harvest Right files into the USB port on your freeze dryer while it is still turned off.
5. Turn on your freeze dryer with the USB device still plugged in.
6. The update progress instructions will display on the screen, do not turn off the freeze dryer or remove the USB drive unless the on-screen instructions indicate that a file is missing from the USB drive. If a file is missing, remove the USB drive, ensure all files are present, and repeat steps 1-5.
7. This process may take up to 10-15 minutes to fully complete.
8. Wait until you see the new home screen displayed.
9. You may now remove the USB device.
10. The installation is now complete, and your freeze dryer is ready to use the new software.

Be sure to download the Harvest Right App for recipes, tips, instant support, and more.

DOWNLOAD NEW SOFTWARE – VERSION 6

Oil Pump Maintenance & Filter Instructions

Candy Mode Instructions for Version 5x

IMPORTANT – Freeze dryers that currently have version 5.4 or 5.5 should NOT use this upgrade. They should instead upgrade to version 6. This upgrade is only for older units.

New software – Harvest Right Freeze Dryers
Please read through instructions to know which of the four updates you need to download.
It is important to note that this new software release only works on freeze dryers that have been purchased since 2017. On the home screen of the freeze dryer, there is a number that tells you which version of software you have. If you have 3.6.11 or a version higher you will be able to install the new software on your freeze dryer.

IMPORTANT – Please read before updating software:

• Versions older than 3.6.11 are not eligible and it could disable your freeze dryer to upload.
• No support will be available to revert back to a previous version.
• Please do not share the software with other customers, direct them to this page to download. (Harvestright.com/software-update)
• Please click here to download and read the most recent USER MANUAL.

Software Upgrade Instructions:
First, identify the middle number in the software version on your machine (software version is located in the top right corner of the main home screen), then you will download the version 25 software update with the version that has the matching middle number.

1. Follow the instructions above to verify the middle number of the software you are currently using.
2. Double check that your freeze dryer has software version 3.6.11, or above, before you continue. If your software is older (a lower number) than v3.6.11, do not continue with installation. Unfortunately, the new software is not compatible with your freeze dryer.
3. Once you have downloaded the folder with the compatible file name to your computer, open it by double clicking on it. Then copy the file within the folder onto the root of a 16GB thumb drive (not in a folder).
4. Turn off your freeze dryer.
5. Insert the USB device with the Harvest Right file into the USB port on your freeze dryer while it is still turned off.
6. Turn on your freeze dryer with the USB device still plugged in.
7. Wait until you see the new home screen with version 5.x.25 in the top right corner.
8. You may now remove the USB device. The installation is now complete, and your freeze dryer is ready to use the new software.
9. Repeat steps 3-5 if you encounter a load issue.

Below are the 5 different software update files for version 5.x.25. Please download only the file with the middle number that matches the software version on your freeze dryer. Otherwise, the software won’t load/work.
For example, if you are currently using version 5.2.24, you will want to download HarvestRight-v5.2.25-Update-v5.2.x.
If you are currently using version 3 (3.6.11, or above) or any version 4, you will need to download the 5.0.25 folder.
Once version 5.x.25 has been updated the screen will say “5.x”. To see exactly which version has been installed, simply press “5.x” twice to see v5.x.25d.

• DOWNLOAD NEW SOFTWARE – v5.0.25 – Update-v5.0.x
• DOWNLOAD NEW SOFTWARE – v5.1.25 – Update-v5.1.x
• DOWNLOAD NEW SOFTWARE – v5.2.25 – Update-v5.2.x
• DOWNLOAD NEW SOFTWARE – v5.4.25 – Update-v5.4.x
• DOWNLOAD NEW SOFTWARE – v5.5.25 – Update-v5.5.x

For a video tutorial, click here: How to Update Your Software

Pharma Owner's Manual

Scientific Owner's Manual

HRC100 Owner's Manual

Owner's Manual (software version 5.0)

Owner's Manual (software versions 5.0.14 - 5.2.16)

Owner's Manual - Includes Candy Mode (software versions 5.x.19 - 5.x.25)

Oil Free Pump Manual

Premier Pump Manual

Proper placement of your freeze dryer is essential for safe, efficient operation.

• Place the freeze dryer on a stable, level surface at least 3 feet above the ground to allow the drain hose to drop vertically and drain properly.
• Do not box the unit into a corner or enclosed cabinet. It needs room on each side for airflow to prevent overheating of the pump, electronics, and refrigeration components.
• Ensure the side vents are unobstructed at all times. Dirty or blocked vents can clog the condenser coils, extending freezing time and reducing the life of the refrigeration system.
• The ideal operating temperature range is 50–75°F. Do not operate the unit when room temperature exceeds 105°F, as this will void the warranty.
• Operate in a cool, dry, and clean environment. Avoid high humidity environments and dusty or dirty areas that can clog internal components.

• Always place the open end of the drain hose in a 5-gallon bucket, drain, or similar container to collect water removed during defrost.
• Never allow the drain hose to be submerged in water. Opening the drain valve while the hose is submerged will suck water back into the chamber and ruin your freeze-dried product.
• Ensure the drain valve is fully closed (handle perpendicular to the tube) before starting each batch. An open drain valve will cause a vacuum leak and can damage the pump.
• Regularly clean the drain line with a safe cleaning agent to prevent mold and bacteria buildup.

• Confirm a proper door seal before every batch. You should see a thin line in the middle of the gasket as it presses against the acrylic door when fully closed.
• Fully latch the door: Stage 1 latches the door, Stage 2 compresses it against the gasket. Turn the handle as far right as possible without applying excessive force.
• Clean the gasket regularly with warm water, allow it to fully air dry, then reinstall. Do not wipe dry with a cloth, as lint can prevent a good seal.
• Ensure the shelving unit does not overlap or interfere with the door gasket, as this will prevent a proper vacuum seal.

• Always spread food in a single, thin layer on the trays. Each piece needs to be in contact with the tray to dry properly.
• Fill trays completely, but do not stack or layer food, and do not let food exceed the rim height of the tray — especially high-moisture items like liquids.
• Never place food directly in the chamber without trays.
• Pre-freeze high-moisture foods in a fridge for up to 48 hours before loading to shorten the freeze cycle. Even when pre-freezing, always allow the food to go through the machine’s freeze cycle — do not skip it. Food must be frozen to the set temperature for the process to work correctly.
• Smaller batches produce more consistent results and are easier on the machine. Overloading extends batch times and increases wear on the vacuum pump.
• For foods with intact skin (blueberries, grapes), cut them in half or poke holes to allow moisture to escape during drying.

• For most foods on version 6 software units, simply press START on the home screen. The freeze dryer will automatically manage all stages of the process.
• For custom batches on version 6 software units, navigate to the Custom Menu, configure your settings, and press Start from within that menu. The Start button on the home screen will not apply custom settings.
• Do not manually advance or skip main batch stages. The freeze drying process is fully automated. Skipping stages risks damaging food and equipment.
• Do not press END BATCH unless you intend to terminate the batch entirely and start over.
• When the batch is complete, remove trays while they are still warm to prevent condensation on your food. If trays have cooled, use the Warm Trays function before removal.
• Package freeze-dried food immediately after removal. Do not leave finished product exposed to air while still cold, as it will rapidly reabsorb moisture.

• Defrost between every food batch. The chamber must be completely free of ice and water before starting a new batch.
  • Exception: In Candy Mode, consecutive batches can be run without defrosting between them using the Start New Candy Batch option on the finished screen.
• After defrosting, ensure the chamber and shelving unit are fully clean and dry before beginning the next batch.
• Do not defrost using a blow dryer or other external heating device. This can trigger the thermal cutoff resulting in batch errors.

• For oil pumps: Check the oil level and clarity regularly. Fill slightly above the 3/4 mark on the sight glass.
• For the Premier Oil Pump: change oil every 20–30 batches, or immediately if it turns cloudy or dirty.
• For the Standard Oil Pump: change and filter oil every 4–5 batches.
• Only use Harvest Right approved oil. Do not overfill as this can saturate the demister.
• Always keep the gas ballast switch open on the Premier Oil Pump. Running with it closed can cause excessive moisture to build up in the oil reducing the pump's efficiency and extending the time of the batches.
• If storing an oil pump, drain and refill it with fresh oil. Dirty oil left in a stored pump will corrode internal parts.
• Inspect the pump demister, vacuum hose, and condenser coils regularly, and clean them if needed, especially after periods of non-use.

• Unplug the unit during extended periods of non-use.
• Empty the freeze dryer, wipe moisture from the interior, and leave the door open to prevent odor and mold.
• Drain the vacuum pump and refill with fresh oil before storing.

DOs

• Defrost between every food batch
• Fully dry the chamber after defrosting before starting a new batch
• Confirm a proper door seal before every batch
• Keep food in a single, thin layer on trays
• Package freeze-dried food quickly after removal
• Check vacuum pump oil level and clarity regularly
• Ensure adequate ventilation around the unit at all times

DON’Ts

• Don’t run consecutive batches without defrosting
• Don’t overload, stack, or double-layer trays
• Don’t manually advance batch stages
• Don’t leave finished product exposed to air while still cold
• Don’t operate the freeze dryer when room temperature exceeds 105°F
• Don’t submerge the drain hose in water
• Don’t use a blow dryer or heating device to defrost
• Don’t place the unit in a dishwasher or use abrasive cleaners