prodotto da lievitare

23:26 Aug 25, 2015 

It's got to be some kind of yeast or baking powder. Which one is it? Pizza dough is usually made with yeast

22:39 Aug 25, 2015 

My dear Linda, you don't need to be a specialist in culinary art to know the difference between a product needing to be raised, one which helps raising etc. In absence of any context, everyone here tried to give their humble opinion.Thank you for being so "kind" with all of us here, ignorants in cooking and baking. My appologies to my colleagues, if I made myself the spokeperson.

22:13 Aug 25, 2015 

I'm sorry, but culinary is one of my specialisations and I would like to express my perplexity about the translations I've read here.
First of all, in Uk, I always bought the raising powder. I've never seen the other verb in the common use. The baking powder is another thing.
Then, if I say leavening product I refer to a specific product which helps the raising: a raising agent. If I say instead a product to be raised I mean that the product needs the raising process to be eaten. So, they express different concepts. But here we need to translate the second one: a product which needs raising.
Sorry, but I would like to specify some substantial differences.