The bottle is attached to a branch and the pear grows inside the bottle.
They place empty bottles directly on the fruit trees where the fruit bud is made to grow inside each bottle.
The pear grew in the bottle.
Not sure if this is the case here, but it would be possible to place the bottle's opening over the pear when it is still very young, on the branch and small enough to fit in the opening. They could allow it to mature that way, harvest and rinse when ripe, then fill and seal the bottle. Again, I'm not sure this is the way it is officially done. I'm just saying that it is one possibility.
To make pear-in-the-bottle they actually grow the pear inside of the bottle in their orchards, and then fill it with their pear eau de vie. This practice of growing pears in the bottle is traditional in Alsace where pear brandy has been made for hundreds of years. Pear-in-the-bottle is highly labor intensive, requiring weeks of work putting the bottles on the trees in late May when the small pear will still fit in the neck of the bottle, tending them all summer, and picking them in late August. Since they use no preservatives or artificial cleaning solutions, each pear and each bottle must be painstakingly scrubbed by hand before they fill it with their pear eau de vie for which they are known worldwide. Due to the unpredictable nature of pear growth from year to year the pear in the bottle is only available certain years.
Bottles are suspended over the pear buds (upside down) before they get too big (the buds not the bottle), and the pear grows in the bottle. I have been very successful in doing that for the last ten years or so.
Possibility 1) They hang a bottle in a pear tree with the fruit bud inside the bottle. It grows in there - not common anymore. Possibility 2) The Glass Bottle consists of a threaded bottom part. The pear is put into the bottle, then the bottom is "screwed" onto the rest of the bottle which will eventually seal the two parts together as well.
Try baked ripe brie cheese wheel (in pastry or not) and serve with water crackers and crisp, but ripe, sliced fresh pears. Pears are ripe when still firm but the stem end gives slightly to mild pressure near the stem. Spread brie on crackers or on pear slices to eat. Use as first course or last course or appetizer or on buffet.
Place the bottle over the new, very small fruit; let it grow, snip off the pear when ripe, wash and sterilise with a Campden tablet, fill with pear wine!
that doesn't make any sense?
Ripe Asian pears will have black seeds and will be a yellow to orange color depending on the variety.
D'Anjou is a popular winter pear due to its mild, sweet flavor and abundant juice. Neither the red or green variety changes color when ripe so the best way to tell when an D'Anjou is ready is to press gently against the stem end of the fruit. If it gives slightly, your D'Anjou is ripe and ready to be eaten.
A ripe pear could take as little as 3-5 days to decompose. A pear that is not fully ripe may take more then a week to rot.