Meant to read at 10mins but my test always dry and stay darker than they do at at 10mins. I know they can get darker but not too dark right?

So I done a test earlier and shook it off as negative came back less than an hour to this.

( these are very dry as I only took the picture from a few hours ago but like I said they was like that within the first hour just not within 10mins)

I then done one a few hours later after I did drink and it came back like this at

10mins

20mins

30mins