The natural enzymes and micro nutrients found in freshly extracted juice will dissipate whether it be a masticating or centrifugal type juicer within about 12 hours. We don't recommend storing juice for longer than a day or so.
Yes, the Breville® BJE200 Juice Fountain® Compact can process celery. With celery being very fibrous, it is important to clean the nutri disc often during juicing.
I have had mine since December so that’s less than three months and I have no issues with mine but I would suggest you contact Best Buy and see if you can get a replacement and hopefully you had a warrantee on it or something, but that is what I would suggest.
Yes it can handle hard vegetables and fruits. I’ve juiced pretty much everything. I’ve juiced a whole pineapple sliced into four and four whole cucumbers in less than 10 minutes. LOVE this juicer!