My son-in-law really, really wants me to make him grape scented soap. I bought a grape fragrance oil, and my house already smells like a grape jelly factory, and I haven't even opened the bottle! This is my first batch of soap with a fragrance oil. Do they always smell pretty intense? I plan on making a 32 oz. batch of CP soap (50% lard, 25 coconut oil, 20 olive oil, and 5 castor). My calculations tell me I'll want to use an ounce of the fragrance for 3% in a 32 oz. batch. Does anyone have any tips, or warnings?