Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: While Amazon's product desciption says these are GLASS. some of the reviews state they are PLASTIC . . . so which is true?
Document: These pitchers are as advertised, can be sealed easily, seem to be quality construction. They do not fit in the dishwasher without a lot of adjusting, and the same is true of the refrigerator. I will probably not buy them again because of that inconvenience.
I order this because the description says they are made of a kind of glass. But when I received them I found them are actually made of plastic rather than glass. I will return them and buy genuine glass pitcher.
Read the reviews about them staining. I think the key to these not staining is to not put anything hot in it. I use these for ice tea and I wait for the tea to cool first. I have not had a problem at all. Been using now for about 5 months.
I was skeptical with the mixed reviews regarding leakage but i purchased this anyway about a month ago. I do handwash them. I have not had ANY instances of leakage or distortion of color. They are very attractive looking and easy to carry to work or travel. People keep asking me where i purchased them.
I read the reviews that said these pitchers never leak and thought, sure, I'll try them. But I really didn't believe them. I filled them up with my favorite drink and found that they really don't leak -- even when you shake them or turn them upside down. I may buy another set I love them so much. Great buy.
I've noted the reviews of others and will avoid the uses others have mentioned. But I have room in my fridge door for them and they're excellent. I brew one pitcher of hot tea every day, let it cool as instructed, and store it in the fridge door. I'll avoid citrus as others have mentioned and not store them on their sides (thanks!). Given those constraints, I'd say these are the best pitchers I've tried.
I recently purchased this after reading other's extremely positive reviews and could not be happier. The double pack is great because I use one for ice tea and the other for ice coffee. They are tall as other reviewers had mentioned, and so two is the limit to fit in my fridge drawer. They are very easy to clean as well since I can easily fit my hand in the pitcher with a sponge. I could see it being difficult for people with larger hands, however.
I would have said plain old Lipton if it had been a blind taste test. Not just me either - I asked husband if thought the taste was off and he agreed.Fifth: Several people who reviewed these referenced clouding after longer use. It says it's dishwasher safe, but I know my plastic tumblers are all cloudy BECAUSE OF the dishwasher. Maybe only hand wash?I don't know if we'll be keeping this or returning it.
I just bought this set of pitchers at Costco and they will be perfect for the sangria I plan to take to the beach. Although they hold over 2 quarts each, they are slender enough not to take up a lot of room in the cooler. Nice tight seal, too. I would have given them 5 stars except for the misleading claim on the box that they are dishwasher safe. If you read the bottom of the pitcher it says 'top rack dishwasher safe.'
I tried to shake the pitcher to mix the powder better and then I noticed some red colored ice tea on my right hand holding the lid. Most plastic pitcher can at least manage air-tight but this one fails.And second, this pitcher stains easily. I'm kind of a messy person, hate to admit that but it's true. I made some juice out of orange, carrot and lemon and found out the juice is too bitter somehow, so I put it aside and forgot about it.
Answer: AcraGlassTM is a type of plastic. These pitchers are plastic (made from polycarbonate), not glass. BPA references are not used for glass products.