# What is the ketchup trick?

## What is the ketchup trick?

“The sweet spot to tap on the Heinz bottle is the embossed 57 on the neck. All you need to do is apply a firm tap where the bottle narrows and the ketchup will come out easier,” the spokesperson said. Look for the 57!

How do you make a ketchup packet float in water?

Fill the plastic water bottle with water, leaving about an inch of air at the top. Fold the ketchup packet in half lengthwise and push it into the bottle. Double check that it floats.

What happens when you mix salt and ketchup?

This usually describes how things float in liquids, but it can also describe how things float or sink in and various gasses. Density deals with the amount of mass an object has. Adding salt to the water adjusted the water’s density to get the ketchup to float.

### How does the diving ketchup experiment work?

Density is mass per volume, so squeezing the bottle increases the density of the ketchup packet. When the density of the packet is more than the density of the water the packet will sink. When you release the pressure on the bottle the air bubble expands and the ketchup packet rises.

Does hitting the 57 on the ketchup bottle?

It’s all about finding the embossed number 57 and using that as the sweet spot. Tapping where the 57 is marked on the bottle, near the neck, provides the perfect amount of pressure to help coax the ketchup out.

Why does the eyedropper sink when you squeeze the bottle?

Squeezing the bottle causes the eyedropper diver to sink. This is because the increased pressure compresses the air at the top of the eye dropper. This increases the mass (and density) of the eyedropper diver​—​causing it to sink.

## How do you open the Heinz ketchup bottle?

official showed how you need to remove plastic white lid, turn it around, and then press down to pierce the foil. This makes a perfect hole which is the same size as the hole in the lid your ketchup will be squeezed out of.

Why do you hit the 57 on Heinz ketchup?

Bottle design According to one popular folk remedy, repeatedly hitting the “57” mark on a glass Heinz ketchup bottle makes the ketchup pour out more quickly and easily.