If you can remove the cloudiness with vinegar, it's hard water deposit. If not, then maybe it's etched in some way.

I would assume they are counterfeit

Raimondi This may be true as a general rule, but I own the same glassware which I almost exclusively use for drinking filtered water (so they are essentially clean except for the rim), and have washed them dozens of times without this effect. And I don't think there would typically be food particulates on a drinking glass?

I rarely purchase from Amazon anymore because of all the fakes. Their either counterfeit or like everyone else, Luminac is using cheaper materials.

Do the new glasses have a Luminarc logo on the bottom? A counterfeit would not go to the trouble of putting in the logo since the glasses are inexpensive (vs. e.g. a fake LV bag where they can get a lot of money so it's worth their time to try to get it to look real).

Often etching like that is from too much detergent, idk if that is the case with yours, but it is something to consider.

I have the same style glasses in several sizes, bought at different times over the years, but mine are Bormioli Rocco. I do not have etching. I do underdose the DW detergent, but I also use the hottest water possible in my Miele DW.

I have two sets of Luminarc glasses - one that I purchased at least a decade ago at Sur La Table, and one that I purchased on January 28 from Food52. Both sets have been washed innumerable times using a standard detergent pod at high temps. No difference in wear between them.

You probably have fake. Has it been over 30 days? Amazon takes back. Just check your orders and ask to return.

I found (stored in an outbuilding) some glassware that had belonged to my grandmother, and they were similarly clouded. I don't know what name brands they were, but I was never able to get them "clean", and I ended up throwing them away, even though I would've liked to have kept them.

They are clearly etched. However, the OP's older glasses were washed together with the new ones. Only the new ones etched. Either Luminac is using cheaper glass or they're counterfeit. Given they're from Amazon, I vote fake.

What a bummer, I'm sorry. Can you contact Luminac and ask if their glass ingredient list or manufacture process has changed?

I can't imagine the problem. I have the working glasses in two sizes also, and they are decades old. I run them through the dishwasher, using Cascade Platinum pods. My last dishwasher has a cycle that washes and dries only the top two of three racks and I'm sure its too much detergent for a load that size but I keep only the pods on hand.

My only issue with the glasses is I cannot find the 8 oz size any longer and would like to have more than 8 glasses that size. The next size up are a little large for juice or milk and are heavy enough they don't have quite the same hand feel.

If there is the possibility of getting them in lesser quality and they are going to end up with marks, maybe I don't really want them and should be happy with what I have.

I do add the drying agent (Finish) to my appliance, could that be making difference in yours? I have to say though, yours look more etched than spotted.

What do the reviews on the Amazon site say? If you're having this problem, surely others have it too. Did you email the company you bought them from?

If what you bought is actually fake, and the seller has disappeared or doesn't respond, I feel pretty confident that by pushing on Amazon "help" and pursuing it, you can get a refund, even if it has been more than 30 days.

In the meantime, check eBay for your glasses, or make sure you're buying from a reputable seller on Amazon (using the reviews).

There can be a difference between buying directly from Amazon or from another vendor, shipped thru Amazon.

If the glasses say they are ”Luminac” like several on here are calling them, they are fakes. The glasses should say ”Luminarc”.

Do the bottoms have logos? Check out the fine print. See if all the cloudy ones have the same bottom logo. Contact Amazon.

Thanks, all. I think I ordered twice from Amazon, both at least two years ago. The cloudy glasses have no logo. The clear glasses have a small mark, illegible. I use what Bosch recommended — Finish tabs with the red ball in the middle, and Jet Dry. Been on the run all day, but a quick spritz of vinegar on one glass showed some improvement. Tomorrow I will soak a couple. I think they will clean up, but likely will discolor again. I have become very wary of buying anything from Amazon, as they do not police their third-party vendors whatsoever.

Amazon is the new eBay, buyer beware!

"Amazon is the new eBay, buyer beware!"

Yep. I just heard the other day they are coming out with a warning label to notify potential buyers of a product with a high return rate, which might indicate a counterfeit. Uh, hey Amazon -- why not just ditch the non-Amazone vendor policy altogether? Reputable reviews. Ha, yea, right -- bots anyone?

I'm pretty intuitive with judging reliability of an Ebay seller, I didn't realize I have to begin doing the same for Amazon. I hadn't even noticed 'third party'. There was an ice storm south of me that slowing things down. It was not adding up to two weeks past expected arrival date though. I had to attempt to contact the seller per Amazon rules, wait 48 hours before putting in a request for a refund. I got the refund. What I wanted was my merchandise.

I'm pretty intuitive with judging reliability of an Ebay seller, I didn't realize I have to begin doing the same for Amazon. I hadn't even noticed 'third party'.

My working glasses have a large number embedded on the bottoms. The size I'd like more of is 375. I can find the 500 new, not the 375.

You cannot go by brand names anymore. Quite a few have gone out of business and the name has been sold to some other company. Broyhill used to be a good furniture company. The name exists, but it is not the same furniture.

Then there is Corning Ware. The original casserole dishes went from freezer to oven to table. They changed the formula and they are not the same glass. I have added to mine at estate sales.

I also have the Luminarc, different pattern and they don't etch like that. Mine do have the name on the bottom.

I have 30 year old Luminarc (in blue) that do not look as bad as those. What a ripoff Amazon has become. :(

You can buy Luminarc from Williams-Sonoma in three sizes. I believe the smallest size should be equivalent to a 375. https://www.williams-sonoma.com/products/working-glasses-with-lids/