instr function if loop to find data

I have cells with a string which looks like

11.25X2.5X11 abcd efgh hot (1000B)
11 X2 X10 hot qwerty poiuy (2000B)
10X2,5X11,25 ghjk hot lkjh (2000B)

The above strings are in column f2, f3 and f4 and so on

I want to have an if loop which can look for within f2:f25000
for string which have three "X" in the cell and the word/string HOT, because that seems like the only filtering criteria that would work (because of inconsistent spaces before and after X imo).

I am trying to use :

For Each cell In Range("F2:F25000")
      If Instr(cell.value, "hot")>0 Then 
         If Instr(cell.value, "X")>0 Then
     cell.offset(0, 4).Value = "BOX"
NEXT cell

How can I modify this for it to do what I want, or some other better way of doing it?
Any suggestions.