Do these stain porcelain? We have an old tub.
322520
No. If anyone is worried about staining, be sure to dissolve the color tablet fully in water instead of letting it sit against the tub. (Even though I've had it sit directly on the tub as the tub has been filling, and it has not stained. They wash up easily.) But once it is fully dissolved, there is nothing left to leave a stain or a residue. You can do this by filling up the tub first, or by dropping it in a cup of water. The water is just colored. It isn't a staining color. Even when you dip a cup into the water, usually the water that you have in the cup, looks clear. Yet, the color in the tub can be dazzling and strong, depending on how many tints you use. My kids have used these for years, in many different tub types, and with lots of tub toys. We have never had a stain. Hope this helps.
322521
Sorry, we have only used it in fiberglass tubs. If it stains slightly I use clorox cleaner on it.
146849
Use Hot water, NO BLEACH and NO SOFTNER!They might still be stained looking but they are clean! I love mine--I did have to buy more about 9 months in. You can get the pad through Amazon. Hope this helped!
252986
You could try a little oxiclean or bleach in the washing machine. I don't think they will ever be as stain free as when they are new but at least they will be clean.
1511780
I've been using these every day for over a year for peppermint tea and prune juice, and have never noticed any odors or staining. I usually just rinse them with hot water after use, but occassionally will run them through the dishwater to sanitize.
316004
Mine haven't discolored, and I've had them for a year. I have them in the bathroom that doesn't get direct sunlight. I don't know if that would cause any discoloration. Also they are glass not acrylic.
2037344
They are black on the inside so you see no stains. I do use mine mostly for water though and occasionally tea. Have no problems with anything regarding stains.
1209448
I would return them. They should not stain. Ours did but we had them unite a while and I think it happened because we put them in the microwave.
962175
If you have a fiberglass or plastic type tub, this product will stain it. These type tub and sinks stain very easily I wouldn't have one of this material for this very reason. Have a resin sink in our laundry room and it's a mess with stains and you can't get them off
1393886
I would imagine so but I would test a small spot first using plenty of water,I had some rust stains and calcium deposits on my toilet bowl rim and it got these nasty stains off,I'm quite sure my bowl was also made of porcelain but I would test a small spot first.
1231332
i have been using mine for a couple months... they are little stained but stilll very usuable.
1506713
Not porcelain or resin I don't know exactly what but they do look natural and I haven't noticed any stains. I've used them before until I could get to a dentist. Now they are wearing so well that I haven't been to dentist in 8 months. Easy to use.
1518898
No, they're excluded in the little manual that comes with the set. Having used the deep pan with tomato sauce a number of times already, I don't see how it would be possible to stain the white ceramic inside the pans; as for scratches, I try not to use metal utensils with these pans.
1598819
No they don't, and quite frankly I'm changing my review of these cups...they've stained badly and we have to use copper cleaner on them all the time to make them look half-way presentable on the outside...the inside there's not much you can do. Not happy with the purchase over time.
2140856
Ours weren't bad, but you might need to rinse them. I know after about 6 months ours were pretty dirty and I just used soapy water and then rinsed them in clean water and they looked great again.
1373743
They are a hard plastic. You could not stain them. You may be able to paint them if you sand them to get the paint to stick.
427843
I never use them with any cleaner. Have never had any kind of stains. I would advise to use them as they were intended.
2122042
I have not tried it on porcelain. Have you tried a pumice stick? I have had great results with the Pumie brand for heavily stained porcelain sinks.