BDB Theory
Its true the expanding and contraction of the water molecules could weaken
the walls. But I believe that its a genetic predisposition of wall
strength and shape. The hot air theory doesn't cut it. Heres why out in
the field I have all kinds of hollow fruits , field pumpkins,accorn
squashetc.......these fruit have less insulation and less mass and heat up
more readily and rapidly yet no sag rings why .
Shape of the pumpkin and wall thickness and strength are the controling
factors. Thick short wheel shape pumpkins don't develope sag rings. Long
pumpkin do . So if a pumpkin has a shape(genetics) that structurally is
conducive to sag rings probably will get them even if the tempeture is
kept constant......BDB
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