They will snap and they will crackle, but they may no longer pop, as Kellogg’s has removed rice from its Rice Krispies and Coco Pops cereals due to “changing weather conditions”.

Rice Krispies has been reformulated to use rice flour instead of rice, while Coco Pops now contain a blend of rice flour and corn flour instead of rice in order to maintain consistent quality. Kelloggs’ said the shift reflected how the climate crisis had affected the quality and availability of some rice and grains used in its most popular cereals.

A spokesperson for Kellogg’s said: “We have updated the Rice Krispies and Coco Pops recipes, which are now made using corn flour and rice flour. We appreciate that even small changes to a much-loved product can feel noticeable and that’s why we have approached this with a lot of care and consideration.

“The updated recipes have been carefully assessed for taste, appearance and texture, and we are continuing to listen closely to consumer feedback.”