As an alternative to the five types of traditional
corkscrews, there are devices called "cork pullers."
The two most popular cork pullers
wine bottles are:
- Prong pullers have metal shears that pass along either
side of the cork and between the cork and
the inside of the neck of the bottle; ridges
slide past the cork on insertion but then
grip it when pulled back out. Prong pullers
require the same brute force as simple corkscrews
to open a bottle but can be the safest choice
in pulling very old, crumbling corks that
might disintegrate if pierced by a worm.
- Gas injection pullers use a cartridge of carbon dioxide injected
through a needle plunged into the cork to
create an imbalance of pressure inside the
bottle that pushes the cork up and out. Like
prong pullers, they may remove weak corks
by gentle persuasion rather than direct force,
but they run the risk of bursting bottles
that are very old or weakened by damage.