Yup, you can do any amount of your recipe (4x, 5x, 10x) as long as you can store it properly. I had started MBing lye solution some time ago, and that was a total game-changer. If you can find a good storage spot, it is totally worth the time and effort.
Only recently did I try making a huge masterbatch of oils, and only because I had accidentally added waaayyyy too much ROE to my home-rendered tallow (or was it lard? I've blocked some of the painful details from my mind, haha). Rather than toss it, I invested in a large HDPE container with a lid and made a big MB of oils that I'm still working through. The hard oils did re-solidify, but it's a pretty homogenous gloppy mass inside the container. Before scooping it out to weigh, I do give it a good whir with the paint-stirring attachment for the drill, or just a long spatula now that the container isn't so full.
All that to say, if you are easily distracted, have only smaller windows of time to soap, or just want to create more time to soap, master-batching is AMAZING. If you like trying all different kinds of recipes, then you'll want to do only small (4x or 5x) MBs so you aren't stuck making the same thing all the time.
Only recently did I try making a huge masterbatch of oils, and only because I had accidentally added waaayyyy too much ROE to my home-rendered tallow (or was it lard? I've blocked some of the painful details from my mind, haha). Rather than toss it, I invested in a large HDPE container with a lid and made a big MB of oils that I'm still working through. The hard oils did re-solidify, but it's a pretty homogenous gloppy mass inside the container. Before scooping it out to weigh, I do give it a good whir with the paint-stirring attachment for the drill, or just a long spatula now that the container isn't so full.
All that to say, if you are easily distracted, have only smaller windows of time to soap, or just want to create more time to soap, master-batching is AMAZING. If you like trying all different kinds of recipes, then you'll want to do only small (4x or 5x) MBs so you aren't stuck making the same thing all the time.