The simple syrup makes more than what the drinks call for. So just make more drinks! You can infuse the rum in any container you want just as long as it has an airtight lid. I used 1 peach for each pint jar and I didn't measure exactly how much rum it was. The peaches do soak up a little of it. So if you use a larger container maybe err on the side of 1 peach for 2 cups of rum. The peaches have such a mild flavor so the longer you let them infuse the rum the better. I say one week minimum is best.