So the boffin people at M.I.T have invented something called LiquiGlide which means no more ketchup sticking to the side of bottles etc.
The non-stick bottle has been devised by a team of PhD students at MIT in Boston, who normally spend their time working on coatings for oil pipelines or the inside of nuclear reactors.
Their breakthrough involves a coating for the inside of the bottle made from secret food ingredients, engineered to have the consistency of a solid but the slipperiness of a liquid.
They estimate that £1m-worth of condiments is thrown away each year because leftovers cannot be scraped from jars and bottles – while eliminating the need for safety caps on squeeze bottles could save 25,000 tons of plastic a year.
So we have to go back to glass bottles which are more expensive than plastic bottles then
