yes
shortening is like butter 1 cup of shortening is equal to 1 cup of butter
You can safely substitute liquid oil for solid shortening in baking ONLY if the recipe calls for the shortening to be melted first. You can substitute butter or margarine for shortening ( 1 cup + 2 Tbsp for each cup of shortening). You can also substitute 1/2 cup applesauce or prune puree for each cup of shortening.
1/9 of a cup of oil
if a peanut butter recipe call for vegetable oil 1/3 cup and I only have 1/4 cup can I melt crisco shortening and add to the vegetable oil.
Just melt your shortening until you have one cup. Let it cool before using. It's the same thing.
8 tsp 1 cup = 48 teaspoons 1 teaspoon = 0.02 cup
The two aren't precisely equivalent. To know whether or not you can replace shortening with oil in any given recipe, you may need to try it and see. As a starting point for your experiments, you should probably use approximately 1/4 less oil than the recipe calls for in shortening. Adjust this up or down depending on results.
You can do this with some things and not with others. If it is something that will work with either, the amounts would be the same. Some recipe require the shortening because of it's higher melting point.
It really depends on what you are cooking/baking, but often you can substitute a cup of butter for the shortening. Don't use margarine though, because it has some water content and would possibly affect the results. You could also try half butter and half lard, which should work well, also.
1 cup of cooling oil
NO. Oil and shortening do not work the same way in recipes for breads, whether it is rolls or biscuits.
Yes, you would only make changes if substituting shortening for butter, in which case you would add 6 teaspoons of water to the 1 cup of shortening to replace the 1 cup of butter.