IanL

I internet searched for 'Raising agents and eructation' and up popped a previous forum entry which had some relevance.

My further research today has found, on website National Library of Medicine / PubChem, the following: "The use of compounds containing bicarbonate is showed to produce the release of CO2. This effect has been one of the problems of the use of potassium bicarbonate as it can cause eructation." That certainly seems to prove guilt! I'll experiment...

Thanks for your response Russ. No, not diagnosed with coeliac, and don't go with gluten free. No problem with most things, just the odd occasional item - like crumpets I've discovered! Also discovered today the problem ingredient must be E501. I test tried a piece of parkin which had E450 and E500 in - no reaction at all. So E501 is the only ingredient...

For years I've had a reaction (burping) after eating especially some breads and some biscuits. By process of elimination, I've narrowed the cause down to raising agents. Tested out a crumpet from a bakery where I get my bread. Bread is fine, crumpet cause immediate spell of burping - started within 5 mins and lasted 30 mins. The only ingredients in the...