So far as offering to Krishna apple cider, this can be done only if it is prepared by devotees. These food manufacturers do not take proper precautions in cleanliness nor do they have devotion to Krishna in their labors so it is not very acceptable offering. If you can make this preparation yourself then it will be alright.
So please continue to engage yourself in Krishna's service very sincerely and I am sure that Krishna will help you in all ways to advance more and more. I am always praying that Krishna will give you strength to continue to go on nicely. Please convey my blessings to all of your good god-brothers and god-sisters in Boston.