Grapefruit spoons have serrated edges designed to help cut through the fruit.
It can sometimes be quite frustrating when eating a grapefruit with a normal spoon. The reason is that spoons are wide and the fruit portions are more slim. Another reason is because when you try to dig out the fruit you end up "squishing" it more than scooping it. In the end you are basically creating fruit juice than anything else.
A grapefruit spoon solves these issues. These spoons are shaped for their intended use. The slim and narrow point that slowly widens mimics the shape of the fruit you are eating.
The edges are serrated like a knife (but not truly sharp). This allows you to slice through and around the fruit segment before scooping it out.
There is not much different from one brand to the next, the tool is almost identical whichever you buy.
Since the design is pretty much the same across brands it comes down to the material it is made of:
Standard: Most metal utensils are made of foodsafe alloys of common metals (think of any spoon or fork in your drawer). For the most part, the material would be stainless steel.
Silver: Grapefruit spoons fall into the category of utensils that some people like to go fancy with. Getting one f these made of silver or sterling silver is the fancy route.
Plastic: We have seen plastic versions of these and we do not recommend them mostly due to some of the cheap plastics we have seen used. (if you can buy a thousand of these for fifty cents, then it likely is not a very safe plastic). In other words, if the price is insanely low, watch out as the materials being used are likely of poor or worse quality.
These spoons typically come in sets. The most common is a set of four.
They are also sometimes combined with grapefruit knives.
This is a four pack of grapefruit spoons. These are about 7 inch long spoons (standard).
This is a two pack of grapefruit spoons. These are ~7 inch long spoons (standard).