I’ll just pop that in my small fridge and use that bottle as my working bottle. Give me an hour or so and I’ll post a pic in a clear water glassI suppose pouring twice will expose it to more oxygen than pouring just once, but I'm not sure the difference will be significant. Anyway, it would be cool if you could do that with just one of those bottles. Then you'd also know what it looked like when you received it. I would mark the bottle the photographed sample ends up in, ”Use first".