Although thawed half and half is safe to eat, it's better used in cooking and baking rather than mixing with coffee.
49+ Can You Use Half And Half For Whipped Cream
Pics. Exactly how much you add depends on the richness of the dish and the amount of the whipping cream being substituted. Can i substitute half & half for heavy cream or whipping cream?
Heavy Cream Vs Whipping Cream Cooking Light from imagesvc.meredithcorp.io
So using them on half and half may not be desirable. You'll love the rich, creamy taste—and it only has 40 calories per serving! It contains about 12 percent fat, which makes it richer than whole milk it's nearly identical to heavy cream (see below), so if a recipe calls for heavy cream and you can only find whipping cream, feel free to use that instead.
You can even use it in recipes that need a.
So using them on half and half may not be desirable. Half and half is equal parts of whole milk and cream with a typical fat content from 10% and 18%. Even then it won't hold stiff peaks and will be quick to deflate. I don't think it will work or you'd have to whip for an extremely long time and have a lot of run off.