Trying this Sun-dried Tomatoes recipe? Or create your own.
Raw tomato weight translates to very little finished yield because water constitutes over ninety percent of the fresh fruit. Squeezing out the seeds prior to baking eliminates excess moisture pockets that would otherwise prolong the dehydration process significantly. Setting the oven precisely to 200 degrees Fahrenheit creates a gentle thermal environment capable of evaporating interior water without scorching the delicate fruit sugars.
Unlike roasting proteins, dehydration relies entirely on physical touch rather than internal temperature probes. Finished pieces should feel completely pliable and leathery, much like dried fruit, with zero tacky spots or oozing moisture when pressed firmly between two fingers. Pulling the pieces too early leaves residual water that invites spoilage, whereas leaving them too long creates brittle chips. Checking individual pieces periodically is necessary because varying fruit sizes dry at different rates on the sheet.