The Harvest Preservation Calculator helps gardeners, homesteaders, and food preservers estimate how much of their harvest can be canned, frozen, dehydrated, or fermented.
Whether you’re harvesting tomatoes, cucumbers, cabbage, green beans, apples, berries, peppers, potatoes, onions, or herbs, this calculator provides quick estimates for common preservation methods so you can plan jars, freezer space, dehydrator trays, and fermentation containers before harvest season arrives.
Simply choose your crop, enter the harvested weight, and calculate estimated preservation yields using either Imperial (pounds) or Metric (kilograms) measurements.
How Much Can You Preserve?
Estimate canning, freezing, dehydrating, and fermenting yields from your harvest.
Your Harvest
Preservation Results
Results are estimates based on typical preparation and storage methods. Actual yield can change depending on crop variety, trimming, moisture, recipe, packing style, and storage container size.
How the Harvest Preservation Calculator Works
Different crops preserve differently. Tomatoes can be canned into sauces and crushed tomatoes, cucumbers are commonly pickled, cabbage is often fermented into sauerkraut, and herbs lose significant moisture during dehydration.
This calculator uses typical home preservation yield estimates to provide planning numbers for:
- Canning jars
- Freezer containers and bags
- Dehydrator trays
- Fermentation jars
- Estimated finished volumes
Actual results can vary depending on crop variety, moisture content, trimming, recipes, and packing methods.
Common Preservation Methods
Canning
Canning creates shelf-stable food that can be stored for months or years when prepared using approved recipes and safe processing methods.
Common canned foods include:
- Tomatoes
- Applesauce
- Pickles
- Green beans
- Relishes
- Jams and preserves
Always follow tested recipes and current food safety recommendations.
Freezing
Freezing is one of the easiest ways to preserve garden harvests while maintaining flavor and nutrition.
Popular foods for freezing include:
- Tomatoes
- Peppers
- Green beans
- Berries
- Herbs
- Apples
Many vegetables benefit from blanching before freezing.
Dehydrating
Dehydration removes moisture to create lightweight, shelf-stable foods.
Common dehydrated foods include:
- Herbs
- Apples
- Tomatoes
- Peppers
- Onions
- Berries
Properly dried foods can be stored for long periods when protected from moisture and light.
Fermenting
Fermentation uses beneficial bacteria to preserve food while developing unique flavors.
Popular fermented crops include:
- Cabbage
- Cucumbers
- Peppers
- Onions
- Herbs
Examples include sauerkraut, kimchi, fermented pickles, and pepper mash.
Frequently Asked Questions
Which preservation method is best?
The best preservation method depends on the crop and your storage goals. Tomatoes are often canned or frozen, herbs are commonly dehydrated, and cabbage is frequently fermented.
Are the calculator results exact?
No. Results are estimates based on typical home preservation yields. Actual yields vary by variety, moisture content, trimming, recipe choice, and container size.
Can I use Metric measurements?
Yes. The calculator supports both Imperial and Metric units. Metric inputs produce Metric outputs, while Imperial inputs produce Imperial outputs.
Which crops preserve the longest?
When properly processed and stored:
- Canned foods often last 1–2 years
- Dehydrated foods often last 1 year or more
- Frozen foods typically maintain best quality for 8–12 months
- Fermented foods can last many months under refrigeration
Can I preserve mixed harvests?
Yes. Many gardeners preserve multiple crops using different methods. For example, tomatoes may be canned, herbs dehydrated, and cabbage fermented during the same harvest season.