If you use a dishwasher you could try adding a drying agent like Jet Dry. Try soaking the glasses in white vinegar and washing them again. If those two techniques don't clear up the glasses, it's possible the glasses are etched which cannot be removed.
If they have a lot of calcium, I put them in the dishwasher, run some water in the bottom of the dishwasher, and then add a half cup of CLR. Run your dishwasher through a cycle. It makes glasses sparkle, and it also cleans out the lines in your dishwasher.
I have found that Mrs Meyers Lemon Verbena Vinegar Gel Cleaner works fantastic on glassware. Sometimes you have to use a Dobie pad type sponge to do the best job. This product is also the only thing that removes stains from my Tervis products.
Every time I clean my mirrors, they end up having tons of streaks and almost look worse than before I started. What could I use to clean them that won't leave streaks...
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www.goodhousekeeping.com/home/cleaning/a38591/how-to-clean-cloudy-drinkin
I've had success with soaking them in vinegar overnight, here are q few additional suggestions in this similar discussion: http://www.hometalk.com/diy/q-cloudy-glass-1079192?expand_all_questions=1
Cloudy Glass
If you use a dishwasher you could try adding a drying agent like Jet Dry. Try soaking the glasses in white vinegar and washing them again. If those two techniques don't clear up the glasses, it's possible the glasses are etched which cannot be removed.
If they have a lot of calcium, I put them in the dishwasher, run some water in the bottom of the dishwasher, and then add a half cup of CLR. Run your dishwasher through a cycle. It makes glasses sparkle, and it also cleans out the lines in your dishwasher.
I have found that Mrs Meyers Lemon Verbena Vinegar Gel Cleaner works fantastic on glassware. Sometimes you have to use a Dobie pad type sponge to do the best job. This product is also the only thing that removes stains from my Tervis products.