Freeze-Dried Food Rehydration & Nutrition Calculator — Water Ratios, Rehydrated Weights & Nutrition

❄️ Freeze-Dried Food Rehydration & Nutrition Calculator

Calculate the exact water needed to rehydrate your freeze-dried food, get the rehydrated weight, compare nutrition before and after rehydration, and get expert tips for best results.

Why Freeze-Dried? Freeze-drying removes 98% of moisture while preserving 97%+ of nutrients, colour, flavour, and texture. Unlike dehydration, freeze-drying uses sublimation (ice → vapour) at low temperatures, making it the gold standard for food preservation. Rehydrated freeze-dried food is virtually indistinguishable from fresh.
Important: Rehydration ratios are approximate. Actual water absorption varies by batch, particle size, and storage conditions. Always start with the recommended amount and adjust. Over-rehydrated food can be drained; under-rehydrated food can absorb more water.
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