In my experience it heats up to expected levels in a reasonable time. I've used it to make fantastic venison. Apples and bananas are still chewy and have great natural flavor with nothing added but lemon juice to prevent browning. I don't understand the bad reviews. It will beep when you plug it in, then you need to press "Start" and set the time/temperature. Also, don't expect "banana candy" when you're dehydrating bananas. Your dried banana won't look like store-bought banana chips, which are fried in oil and usually have sugar added. long gone. It's not as noisy as I expected and I have much more confidence in its capabilities than vertically heated/stacked dehydrators. I wish it had more accessories for processing fruit peels. I'll probably order some teflon sheets before trying this. It takes up quite a bit of counter space but fits a lot of space on 6 racks.
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