Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: My butter keeps falling out why does this happen?
Document: two things to watch for while using this product, first don't over fill the base and second the butter has to be pre softened as it's the adhesion to the cup that keeps it from falling into the water. (Why oh why do you force us to type so much Amazon? ), (Why oh why do you force us to type so much Amazon?)
These work great!! I never had any trouble with the butter falling out. I don't know why some people have such a problem. I've packed the butter in tight, I've packed it in loose and it never falls out even in summer when it 80 degrees in the house. If you fill it with the proper amount of water (so it goes up the sides a little ) the water pressure keeps it in.
My cat loves butter. Any butter dish I had on the counter would end up broken because the cat would knock it down to feet the butter inside. It's one is sturdy and airtight. Keeps the butter fresh and the cat doesn't even look at it. I never had a problem of butter falling out or going bad and I live in a desert climate.
Bought a second one of these because I liked the first so much. This keeps one bowl in rotation while the other is being washed. Holds a whole stick of butter nicely. I am not fond of all white, but this does blend with any crockery.Best if you change water every two or three days and make sure the butter has no gaps on the edges of the bowl... that prevents the butter from falling in the water as you lift the top.
I bought one of these at Marshalls last year but haven't used it until this week. Butter keeps falling out, but after reading the reviews on here I think the problem may be that I haven't packed in the butter tight enough in the bell.Coincidentally, I saw a used one at Goodwill this week and noted the bell was discolored. It smelled of rancid butter. I guess some reviews on here about butter getting into cracks in the glaze are true.
Butter got rancid and kept falling out of bowl and into water.Not very adequate directions!Not happy with product.
My husband loves having soft butter whenever he wants it. Had some trouble with butter falling out but discovered I wasn't using enough water. No more problems. It looks nice sitting on the kitchen counter too.
I hate this thing. I can't keep the butter from falling into the water after trying so many different things. It's a shame because it really looks good on the counter compared to a butter dish.
I was skeptical about this item, but after a month, I love it. Unlike other reviewers, I have not had the problem with butter falling into the crock's water. It makes sense that since oil and water don't mix, the butter receptacle must be completely clean and dry prior to adding the butter.
In this Louisiana heat, the water doesn't stay cold enough to keep the butter soft without falling into the water. Once it gets cooler here in cajun country, I'm sure that the butter keeper will work wonders! Overall, I am satisfied with my purchase, just wish it wasn't so hot in this part of God's country!
Answer: Let your stick of butter soften for about 30-40 minutes then put in bell.  Press in well to remove any air bubbles. Be sure it is real butter and not margarine.