All puddings must be boiled in plenty of water, turned frequently, kept closely covered, and never allowed to go off the boil.
That is the reason for the coin. You will be able to hear it dancing about, and it will tell you if the water goes off the boil or is getting dangerously low.
Wikipedia foundation.
off the boil — Brit informal : into a state that is less good than before After two hit singles, the band went off the boil. [=the band was not as successful] • • • Main Entry: ↑boil * * * off the ˈboil idiom (BrE) less good than before … Useful english dictionary
go off the boil — 1. to become less successful. After winning their first two matches this season, the French team seem to have gone off the boil. 2. if a situation or feeling goes off the boil, it becomes less urgent or less strong. The housing issue has gone off … New idioms dictionary
go off the boil — 1. To stop boiling, fall below boiling point 2. To subside from an active or critical state • • • Main Entry: ↑boil * * * go off the boil british phrase to become less successful than before The team suddenly went off the boil in the final match … Useful english dictionary
go off the boil — British to become less successful than before The team suddenly went off the boil in the final match … English dictionary
take something off the boil — british phrase to remove something from heat so that it stops boiling Take the pan off the boil and add the remaining ingredients. Thesaurus: to change consistencyhyponym Main entry: boil … Useful english dictionary
take something off the boil — British to remove something from heat so that it stops boiling Take the pan off the boil and add the remaining ingredients … English dictionary
boil — Ⅰ. boil [1] ► VERB 1) (with reference to a liquid) reach or cause to reach the temperature at which it bubbles and turns to vapour. 2) (with reference to food) cook or be cooked by immersing in boiling water. 3) seethe like boiling liquid. 4)… … English terms dictionary
boil — boil1 S3 [bɔıl] v [Date: 1200 1300; : Old French; Origin: boillir, from Latin bullire, from bulla bubble ] 1.) [I and T] when a liquid boils, or when you boil it, it becomes hot enough to turn into gas boil at ▪ The solution boiled at 57.4°C. ▪… … Dictionary of contemporary English
boil — I UK [bɔɪl] / US verb Word forms boil : present tense I/you/we/they boil he/she/it boils present participle boiling past tense boiled past participle boiled * 1) a) [intransitive/transitive] if a liquid boils, or if you boil it, it becomes so hot … English dictionary
boil — boil1 [ bɔıl ] verb * 1. ) intransitive or transitive if a liquid boils, or if you boil it, it becomes so hot that there are BUBBLES in it and it starts to become a gas: When the water boils, add the rice. Boil some milk in a pan. put something… … Usage of the words and phrases in modern English
