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: What is the plastics recycle number on the bottom?
Document: I purchased this and the powdered sugar keeper by the same company because the description said they were BPA free tested. They both have the number 7 on the bottom of them. This is the worst rating a plastic container can have. Highly toxic. Progressive should be ashamed of trying to sell these products as BPA free!
If it is nice a fresh I will up the number of stars from 4 to 5.
The tapered design prevents the cannisters from fitting snugly together when lined up side by side in the pantry, so there are "holes" in between at the bottom.All in all, from the perspective of having tried many different types of canisters over the years, I find these to be superior to most. At this price point you would be hard pressed to find better.
I used to keep my dark brown sugar and light brown sugar in Tupperware plastic rounds. The Progressive International Brown Sugar Keeper is far superior and holds a number of brown sugar boxes. I'm amazed at how moist the brown sugar remains. I'm so impressed with it that I plan to purchase it for gifts.
My wife loves this brown sugar keeper. The disc, properly moistened, does just what you'd want it to do. One small thing:  our first one of these became cracked on a bottom corner. It was obviously dropped or landed hard at some point, but she doesn't remember doing it, which suggests that the plastic housing is a bit brittle. We have a replacement now and will remember to pick it up with both hands!
I was expecting to be thrilled with this product, but have been somewhat underwhelmed. Maybe if I put fresh brown sugar in the keeper, it would keep it soft. I had sugar that was hard, had tried to soften it, then put it in the keeper with the tile. It keeps getting hard again. I thought it would stay soft. I have another tile that I have used for a number of years in a tin with my brown sugar before getting this keeper. It worked just as well or better.
why didn't we have this sooner? totally worth it and works like a charm. goodbye to all that (hard brown sugar)
what a great melding of design and use! I will be purchasing more for other items in my kitchen. Love them!
this clay disc and container works just like it suppose to.keeps the brown sugar soft. I had put some of the harder clumps in and now they are soft.love it!
the sugar keeper works as advertised.keeps my brown sugar soft and usable.place a label on container with the date I moisted the little disk,so I knew when to remoisten.was impressed enough to have purchased a second one for my other brown sugar.would recommend to anyone.it works well enough to justify  the price,which is a little high if looking at it as just a plastic storage container.
Answer: 7