Glass and spoon. I think a lot depends on the brand. ON mixes pretty well. Prolab a little less well. The basic EAS not so well. The gritty stuff from Walmart actually mixes decently for me, but I'm beginning to wonder what that grit is.
If I'm on the go, then you'll see me shaking the cheapest Rubbermaid quart container I can buy.
If I'm on the go, then you'll see me shaking the cheapest Rubbermaid quart container I can buy.
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