will these bowls stain if microwaved with tomato soup or tomato sauce?
791171
They shouldn't, I've used them for other tomato-based soups and did not have an issue.
791172
The product description says that they are not microwavable. Melamine is like that; it's great on all fronts by microwave makes the plastic slowly become brittle and any oil or fat in the food you are microwaving reacts in weird ways with the bowl to stain or even blister. In our house, we never microwave plastic. Nuke it in glass, transfer to plastic.
791173
The company's own website said yes. Especially I would think in white, but in all fairness I had the other colors.
791174
I love these bowls for personal use cause they are so user friendly. The outside stays cool with hot soup in the bowl and the non slip base is great. I got the blue ones. No staining yet but if you are getting white they might. Others have reported that their website says they will stain. My only complaint is that they scratch if you use metal utensils especially forks. In blue the scratches become very visible which is why I only use them when dining alone. In white the scratching might not be so evident because the scratched on blue bowls appear whitish. White scratches are probably less noticeable on white bowls I love these bowls for personal use cause they are so user friendly. The outside stays cool with hot soup in the bowl and the non slip base is great. I got the blue ones. No staining yet but if you are getting white they might. Others have reported that their website says they will stain. My only complaint is that they scratch if you use metal utensils especially forks. In blue the scratches become very visible which is why I only use them when dining alone. In white the scratching might not be so evident because the scratched on blue bowls appear whitish. White scratches are probably less... » Read More I love these bowls for personal use cause they are so user friendly. The outside stays cool with hot soup in the bowl and the non slip base is great. I got the blue ones. No staining yet but if you are getting white they might. Others have reported that their website says they will stain. My only complaint is that they scratch if you use metal utensils especially forks. In blue the scratches become very visible which is why I only use them when dining alone. In white the scratching might not be so evident because the scratched on blue bowls appear whitish. White scratches are probably less noticeable on white bowls « Show Less
791175
Place tomato stained items outside in direct sun for several hours...staining should be removed.
1889721
I checked and the bowls are not microwave safe! Hope this info helps...they are great for washing fresh fruits and veggies.
1247625
I've used my bowls in the Microwave and washed them in the dishwasher with no problems, Williams Sonoma sells a different brand that's French made that looks the same in style with sizes that are different than the A Krupp bowls, I have bowls from both French and German Companies, I'm very happy with the bowls and use them daily.
2273831
I put my smaller bowls in the microwave and haven't had a problem. The salad bowls are very large for individual salads though so I use them more for serving dishes. Therefore I rarely need to microwave the contents of the bowls. The bowls do conduct heat so be careful!
1197823
I think they are not. I could not find the answer so I put the smaller one in the microwave and now it is discolored. I would recommend not microwaving them.
2155964
According to the description: "Safe to use in refrigerator, freezer, microwave, and dishwasher." I do not microwave in mine, however. As far as staining, I use white vinegar, peroxide, or even bleach to get out stains if the containers need it.
1197560
The only reason this would happen is if there was no water added. I have microwaved hundreds of these noodle bowls with not a single incident
1110933
I think so, and there are several sizes you can choose from. I have not tried to use them with "liquid" ingredients, only dry, so don't know if they will stain
2193049
I've used mine for barbecue sauce and vegetable soup and it did not discolor. My other containers have turned orange from the tomato paste I use in the soup.
1485329
I have both and so far have no stains on either. I really like the lekue containers and have Four. I only use in the Microwave Oven
234026
If you heat something too long/too hot it would affect the temperature of the bowl, but if you are careful to remove it mostly by touching the lip of the bowl, you should be okay. They are a thinner microwave plastic than I prefer.
2122304
On the bottom of the bowl it says NO to Microwave. Many uses for the bowls and they are dishwashable.
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.
1541728
We got the black bowls, and hence staining never really occurred. We use this for my son's lunch box, and sometimes my husband doesn't get around to cleaning it out for the weekend. With smell-sensitive kids, and a husband that doesn't use the dishwasher for the bowls, we haven't had a problem. We have replaced the bowls once, after daily using this item for two-three years, but they were under $10 and sent by the company quickly.
362824
There is a microwave symbol on the bottom of the bowls. I have not microwaved in any of them.
2031727
I used it for like 30sec in microwave and its stained the bowl, I had pureed carrots in it. So I was fairly disappointed.
1225976
Yes we have seen stains. Ours have come mostly from cooking potatoes with their skins on. I haven't done a lot of carrots or tomatoes in them. We have done chili but I don't think that stained as much as the potatoes.