Work through these in order. Most people never need to get past Method 3.
Hold the body firmly on a stable surface. With the heel of your other hand, deliver a sharp, angled tap right at the seam where the cap meets the body — not the top of the cap. Rotate and tap again.
Pair each tap with an immediate gentle twist. This breaks the vacuum in most cases.
Sometimes the lid isn't truly stuck — your hands are just wet and cold. Wrap a rubber jar opener, kitchen towel, or silicone mat around the cap and apply firm rotational pressure.
Submerge the shaker lid-side down in warm (not boiling) water for 30–60 seconds. The heat causes the metal to expand slightly, giving you just enough slack to twist it free. Use a towel for grip immediately after.
Place the entire shaker in the freezer for 10 minutes. Remove it, then run just the cap area under warm water for 15–20 seconds.
The cold body and warming cap create a thermal gap — the cap expands slightly relative to the body, releasing the grip. Attempt to open immediately while the difference is still active.
Drain all liquid first. Insert the tip of a waiter's corkscrew straight down through the center strainer hole, about halfway. Secure the body between your knees. Use the lever arm to apply steady upward pulling force — not a yank, a sustained pull.
If everything above has failed: fill the shaker completely with water through the strainer holes and place it upright in the freezer for several hours.
As water freezes, it expands with extraordinary force — enough to split rock over geological time. That pressure will unseat the cap before it deforms the body. Let it thaw slightly before opening.
Only if nothing else worked.
