Given a paragraph about cooking, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.

CONTEXT: There are a couple of things you can do to prevent sugar crystallising. You can add some glucose syrup, or you can 'invert' the sugar by adding some acid, namely cream of tartar. Both should be readily available, online if not at your supermarket. Cream of tartar is also useful when making meringue.  <sep>  Q: How can I prevent simple syrup from crystallizing? A: There are a couple of things you can do to prevent sugar crystallising  Q: well when I store it in the fridge it seems to crystallize A: You can add some glucose syrup, or you can 'invert' the sugar by adding some acid, namely cream of tartar 
When do you add the acid?

CONTEXT: The easiest method, and most common in a commercial setting, would be to add a small amount of yeast in addition to the sourdough starter. You will probably have to reformulate a bit, as the dough will mature faster leaving the starter less time to develop flavor. This is usually overcome by also increasing the proportion of starter (and adjusting the final dough's hydration based on the hydration of your starter).For instance, if your original recipe included 30% starter (in baker's math), the faster version might have 40% starter and .5% yeast. If you use a liquid starter, you may then cut the water by 5% or so, and if you use a solid starter no further adjustment may be needed.  <sep>  Q: Is there any way to speed up dough maturation? A: add a small amount of yeast in addition to the sourdough starter 
how much time will be saved by using this method?

CONTEXT: Fudge is basically a chocolate flavored candy.You combine chocolate and a sugar syrup and boil the syrup until you get the desired concentration. Everything else about the recipe is to either minimize sugar crystal size or add flavor.Sweetened condensed milk will do two things-1- give you a nice, caramelly flavor2- Save a little time. Since it has less water to begin with there will be less to boil off.  <sep>  Q: What kind of milk is the best for making fudge? A: Sweetened condensed milk 

Would it be ok to use regular milk?