Most sweets are built to survive being eaten slowly. The flying saucer is built to fall apart as fast as possible, and that's not a flaw — it's the entire design brief.
What the shell actually is
"Rice paper" is the common name, but it isn't paper in any real sense — it's a thin edible wafer made from a starch and water mixture, dried into a rigid disc. It has almost no structural strength once wet, which is exactly the point: the moment it touches your tongue, saliva starts dissolving it, and within seconds there's nothing left holding the filling in.
Compare that to a gummy sweet, which is engineered to resist breaking down for as long as possible while you chew it. The flying saucer is doing the opposite job on purpose.
The filling is doing the real work
Inside is sherbet — a dry powder mix of sugar, citric acid and sodium bicarbonate. The moment the shell collapses and saliva reaches the powder, the classic acid-bicarbonate reaction kicks off, releasing carbon dioxide as tiny bubbles on your tongue (we've covered the actual chemistry of that reaction in more detail elsewhere). The shell's entire job is to keep that powder dry and contained until exactly the right moment.
Sour Mix, and what's changed
Our Frisia Sour Mix Flying Saucers take the same wafer-and-sherbet format and load the filling with extra citric and tartaric acid for a sharper hit — dairy-free, gelatine-free and gluten-free by ingredients, which is worth knowing since so many retro sweets aren't. The plain original in our Flying Saucers Drum is closer to the traditional version most people remember.
Why they've never really gone away
There's very little to a flying saucer — starch, sugar, acid, bicarbonate, colour. No gelatine, no chocolate, no complex manufacturing. That simplicity is probably why it's survived for decades without reinvention: there isn't much left to improve, and the format is distinctive enough that nothing else in a pick 'n' mix tray quite replicates the collapse-then-fizz sequence.
Where to find it
Both versions are sold by the drum, which makes portioning into bags or a pick 'n' mix bin straightforward — see the full Retro Sweets range for the rest of the classics alongside it.
Frequently asked questions
What are flying saucers made of?
A rice-paper-style starch wafer shell filled with sherbet — sugar, citric acid and sodium bicarbonate.
Are they vegan?
Typically yes, since the recipe has no gelatine, dairy or animal-derived colours — but always check the specific pack.
Why do they dissolve so fast?
The shell is a very thin wafer with almost no resistance to moisture, designed to collapse within seconds so the sherbet filling can react.