New Refractometer - Questions

[revhtree]

I bought a portable refrac. and got it today. I was wondering if I could calibrate it using regular spring drinking water like aquafina?

Don't want to go out and get distilled tonight. Alas I will wait if need be....

TIA!

 

[DaveBeaty]

I would recommend waiting for the distilled. Good tasting water usually has some minerals in it, as distilled or demineralized water tends to taste "flat" or "stale".

If you had a Reverse Osmosis Water Purification Unit, you could get fairly close with RO water, but it still wouldn't be as accurate as distilled.

 

[loganj]

Distilled...don't bother with the spring water...it's basically well water and the calibration won't be accurate.

 

[ellisz]

Mine came calibrated already. I have tested with RO water and never have had to re-calibrate.