This weekend I plan on doing northern brewer witbier extract kit on saturday and their kama citra extract kit on sunday. I purchased liquid yeast packs both with a date of 10-5-15 printed on them (WLP051 for the Kama and Wyeast 1056 for the witbier, im going for a blue moon clone and not a traditional wit). I have never made a yeast starter before and was wondering if i could just make two 3 liter starters in my two primaries and pour the wort from the kits on top of them? I only have two primaries and have no glassware to make a starter in. I do have some large protein jugs i could wash out. I got the 3 liter starter size from the brewers friend calculator. I also have a few packs of S-05 i could pitch with the liquid... Any advice on pouring on top of yeast starters?