How much water? How long do I soak it? Do I need to boil it?
These are the three questions Mother Earth Products customer support hears most. The answers are simple once you know them, but they live scattered across product pages, package directions, and customer service emails. This is the answer in one place. A complete rehydration guide covering every Mother Earth Products category, with ratios, times, and the shortcuts that actually work.
How rehydration works
Rehydration is the reverse of dehydration or freeze-drying. Water removed during processing gets put back in by the cook. The difference between getting it right and getting it wrong is mostly about how much water and how long, which varies based on what was done to the food in the first place. (For a deeper look at how those two processes differ, see our Freeze-Dried vs. Dehydrated guide.)
Two general rules cover most situations.
Freeze-dried foods rehydrate fast because they were never heated. The internal structure stayed open and porous, so water moves in quickly. A couple of minutes is usually enough.
Dehydrated foods take longer because the cell walls compressed during the slow low-heat dry-down. Water has to work its way back in. Plan on 15 to 30 minutes for most dried vegetables.
The exception is dehydrated beans, which Mother Earth Products pre-cooks before drying. Those skip the overnight soak entirely and cook in 3 to 25 minutes depending on how tender you want them.
The cheat sheet
The whole catalog, on one page:
| Category | Water ratio | Time | Method | Notes |
|---|---|---|---|---|
| Freeze-dried fruit (strawberries, blueberries, apples, peaches, mangos, etc.) | None, or 1:1 cold water | 2–3 min | Eat dry, or cover with cold water | Snackable straight from the bag. Cold water only on fruit. |
| Freeze-dried vegetables (broccoli, peas, corn, peppers, etc.) | 1:1 water | 3–5 min | Cover with cold or warm water | Drain any excess before using |
| Dried vegetables (carrots, onions, celery, peppers, etc.) | 1:2 water | 15–30 min | Cover with warm water, then drain | Or add straight to soup and let it simmer |
| Dried tomato flakes or powder | 1:1 boiling water | 10 min | Stir together, let stand | Pours into sauces or seasoning blends |
| Dried herbs and spices | None | Immediate | Use as-is | Add at the end for maximum flavor |
| Dehydrated beans (black, garbanzo, kidney, navy, pinto, red, lentils, great northern) | 1:3 boiling water | 3–25 min | Pour boiling water, simmer | No overnight soak needed. Longer cook = more tender. |
| Refried bean mix | 1:3 boiling water | 3–5 min | Pour boiling water, stir | The fastest bean option in the lineup |
| Instant Hummus Mix | Per package (water + olive oil) | 5 min | Stir and rest | Ready to serve straight from the bowl |
Use case shortcuts
A few patterns to keep in mind once you're working with the chart day to day.
If you're snacking, skip rehydration for fruit and treat the bag like trail mix. Freeze-dried strawberries, blueberries, apples, and mangos are designed to be eaten dry. You don't need to do anything to them.
If you're cooking with dehydrated vegetables in a wet dish (soup, stew, chili, pasta sauce), don't rehydrate separately. Toss them in with the cooking liquid at the start and let them work it out as the dish simmers. They'll absorb the flavor of the broth at the same time, which is exactly what you want.
If you're cooking with dehydrated vegetables in a dry dish (stir fry, scramble, casserole), rehydrate first in warm water. Drain, then add to the pan. Skipping this step gives you tough vegetables in an otherwise finished dish.
If you're making beans, start with boiling water. Cold water doesn't work as well for the pre-cooked dehydrated beans because the activation needs the heat. Pour boiling water in a 1:3 ratio, simmer, taste at three minutes to check, and pull off the heat when they're as tender as you want.
If you're using dried tomato flakes or powder in a sauce, just stir them in toward the end. They'll absorb sauce moisture as they sit.
Three things that go wrong most often
Over-soaking. You don't have to leave dried carrots in water for an hour. Fifteen to thirty minutes is enough. Past that, they get mushy and lose their structure. Same for freeze-dried fruit: 30 seconds of cold water is enough to plump it up. A full minute is too much.
Hot water on fruit. Freeze-dried fruit and warm water don't mix. The hot water collapses the cell structure and you end up with a soft pink slurry instead of bright plump berries. Cold water only. (This is the single most common rehydration mistake we see.)
Adding dried vegetables too late. If you're making soup with them, they go in at the start. They'll rehydrate as the broth simmers and absorb the flavor at the same time. Adding them at the end means they stay tough and the broth tastes thinner than it should.
Storing the leftovers
Whatever you don't use, reseal tightly. Both freeze-dried and dehydrated foods pull moisture from the air, and a bag left open on the counter loses crunch overnight. A bag resealed and stored in a cool, dry place keeps for years.
The original packaging is fine if it has a working zip top. If you've cut a corner open or punctured it, transfer the rest to a sealed jar or zip bag. For very long-term storage, vacuum-seal.
Keep the chart
This is the chart that lives on the inside of a pantry door. Print it, screenshot it, or just bookmark this page. Most customers who write in once asking how much water never ask again. They just want the answer somewhere they can find it.
For practical applications of cooking with dehydrated vegetables, our 8 Quick Recipes and Tips for Cooking with Dehydrated Veggies has the recipes that show this in action. For the underlying difference between the two preservation methods, the Freeze-Dried vs. Dehydrated guide is the anchor post.