Been a few post on this in other threads .. but no separate topic so .. my findings.
Varieties
There are a few of them. The 'honey dew' ones have a very small stone .. so you get more out of them than you would think. I also like the taste - not quite as sweat as the calypso.
Size
I found the smaller cheaper ones got as much flesh per $ are the larger ones .. so I don't think that matters.
Slice thickness
Tried 6mm .. took over 12 hours to dry and not as dehydrated as thinker slices.
Think 3mm is about right.
I do take the skin off before slicing - remove one side first and remove the flsh from there before removing all the skin, reduces mucky hands and fruit bruising.
Dehydration
Subject to the dehydration machine and local climatic conditions. I use 55 C and 10 hours, the hours are flexible.
Water reduction ratio
For 6mm slices 7.29, for 3 mm slices 7.45. That is about 700 grams of wet mango flesh goes to ~100 grams of dehydrated mango flesh. I don't bother rehydrating them, though I have tried it and they do go back up. I prefer to just let them sit in my mouth.
Costs
2 large mangoes equal ~4 small mangoes in terms of harvested flesh, and that is ~500 grams worth. Say $7.22 per kilo of harvested flesh when buying individual mangoes. Humm 1 kg wet = ~ 134 g dry so $52.63 per kg of dehydrated mango. The commercial ones are $6 per 150 g so $40 per kg. Conclusion .. buy in trays!
--------------- All the above subject to further experimentation! (Read: further mango eating.)
Should there more topic posts on individual fruit dehydration? For instance Kiwi Fruit comes in 2 varieties .. the golden ones don't have the acid finish of the greens.